The Surprising Risks of Too Much Vitamin D for Seniors

[@W2sumner]

The studies cited were the products of the endocrinology discipline. You might want to include opinions of immunologists because Vitamin D has integral immune function. In particular you might review COVID-19 deaths and Vitamin D levels.

[@HarrisPilton789]

Absolutely! I started taking 10,000 IUs per day while undergoing chemo and radiation for breast cancer. This was during the planned-emic and of course I had a suppressed immune system. I have never contacted the Vid 19. In fact, I haven’t gotten sick at all in the past 2.5 years. I also take 400 mcg of K2 and 400 mg of magnesium glycinate, in addition to other supplements.

[@nancylucas4231]

For effectiveness Vit D needs to be taken in balance with K2, potassium, magnesium .... Even Fauci (who I am not a fan of) said he takes 6,000IU's per day. Go figure.

[@asadwahidi8894]

By

[@GoldKingsMan]

Yea I was in the garden taking some sunshine, never caught Kuruna that time.

[@dreamervanroom]

Yep. And the antocancer dotor promited it.

[@gionet601]

I hate to say it you are a wonderful person in the doctor, medical school teaches people wrong. I’m sorry..😮 I did my own research on myself. I read all kinds of papers. I have melanoma stage four and I got over it. They said stay away and stay away from the sun. I felt awful. I was taking 1000 IU vitamin D3 , my sinus were terrible every day I had a sons pill I couldn’t get in the sun again I would burn up, I started taking 5000 IU vitamin D3 and K2, twice a day that’s 10,000 IU , after several weeks, my sinuses were clear I was sitting in the sun in the winter time for a half hour a day I got golden Brown. I never felt better. This is been four years now and the studies I come across., you can take 50,000 Iu a day and nothing will happen, and statins no way in shape or form take a statin , it kills all the cholesterol, and you did some research about cholesterol. We need cholesterol so badly and nobody died. Nobody died of too much cholesterol., it’s the drug companies pushing their product. I’m sorry but I’m a living proof. I’m 64 and I’m so much better now.

[@pistacchini]

Fully agree 🎉I am 75 and I am taking 10.000 IU of vitamin D each and every single day for more than ten years 😊

[@childearth4039]

Congratulations for surviving the stage 4 melanoma. Wish you a long and healthy life.

[@jehanbib1465]

Stay healthy Ameen

[@marksanbourne3064]

With you on this one. I get much Vit A and D from liver and little fishes. Natto in the winter. Also 10k D 3xs/week in summer and daily in winter. If cholesterol is so bad then why has it not killed me at 500-800 mg daily. Red meat and eggs. I never burn even working bareass in my garden for decades. At 70, I do 1/4 mile swim in 10-11 mins. 1/2 in

[@Decision_Justice]

What you're saying is called an anecdote. One Anecdote can say one thing, and another anecdote can say the complete opposite. That's why they're not reliable. And that's why we developed blinded controlled studies where no one knows who's getting the pill with the real Vit D in it until after the study ends. We learn a great deal more from actual studies which can contain thousands of individuals and the data on how things worked for them. It's good, strong, reliable data. And I'm sure that's why the physician is reporting the results of several studies. By the way, my dad was diagnosed with stage 4 melanoma. He drank everyday and ate hot dogs and pizza every day. He didn't take vitamin supplements nor take care of himself and he lived for 21 more years. He was riddled with cancer. My mother exercised every day, researched and took vitamins every day and she died from having too high cholesterol. She had to undergo 2 bypass surgeries due to her arteries getting so clogged up. So yes, people do die of too high cholesterol. Both my parents' experiences are just anecdotes. It's the combined power of the studies that tells us overall what works best, not anecdotes.

[@alfredadrianjr.4702]

Interestingly nothing on the relationship of vit D supplementation and immunity. Remember SARS Cov-2 studies that showed a signific effect of latitude and low vit D levels to inc mortality/morbidity? Why didn't health professionals mention these studies?

[@chickenlittle829]

I only became eligible for vitamin d testing after I was diagnosed with osteopenia, and learned I was deficient. At that time I had only been getting about 400IU of vitamin D from cod liver oil, plus a little more from fortified yogurt and fish-little direct sun because I had also had skin cancer. But the amount of supplemental vitamin D required to get my level up to 40ng/100nmol was 4400IU per day for 3 years! Since then I have dropped back to 3000IU/day, but I have halted my bone loss, reduced the number of respiratory infections, and improved my mood. If I had never been tested, and had only started taking 800IU/day, I think I would be in much worse shape, if I would even still be alive.

[@MiroBG359]

why wait to be eligible - $30 test at Labcorp and Quest and able to order online without waiting on anybody

[@jrstf]

@@MiroBG359 - Thanks, I didn't know the cost was so low for this test.

[@harrybarrow6222]

In the winter in more northern latitudes, most people will be deficient in vitamin D. There is just not enough sunlight. In addition, if you have a darker skin, you will probably have a deficiency. I am in the UK. My doctor, who is Asian, told me that he and all his family take vitamin D supplements. You should take K2 with vitamin D because D increases calcium in the blood. K2 helps direct the calcium to the bones so it is not deposited in the arteries.

[@adelarsen9776]

100 mcg K2 for every 10k of D3.

[@jimpowers9553]

I’m a retired medical technologist. This is totally flawed research. Not necessary to test levels? Come on doc. Get a grip.

[@markparker5585]

Another patient cured is another customer lost.

[@GuidoDePalma]

i have hardly ever been suggested by the YT algorithm a video as bad as this one.

[@criticalthought7527]

I have been following Vitamin D research for over 15 years. This person is either suffering from her Big Pharma indoctrination and bias that she received in Med school almost 20 Years ago, or is a malicious shill for Big Pharma and Big Med. We all know that all of the agencies and Med Schools are completely captured by the Medical Industrial Complex and thus any anti D studies must be held to a high degree of skepticism, especially if there's ANY conflict of interest. While lightly touching on the importance of D in the body aside from bones and teeth she promptly ignored this most important aspect of D and Health. Her 'levels' advice is completely flawed in my opinion. For brevity I will offer just two points to defend my claims: A. Just one sunbathing session for 50% of the time it takes to sunburn the skin will typically allow anyone except the very elderly to synthesize about 20,000 iu of D3. If at all possible, this is the best way by far to maintain your D levels due to its natural effectiveness at maintaining D levels and for the many other benefits of sunbathing like increased Nitric Oxide in the blood which acts as a vasodilator that helps to control blood pressure. B. The Hunter Gatherer Tribes on the Savanah like the Hadza and the Maasai have D levels in the 60-80 Ng/ml range. I've seen no evidence that their levels that are well above 30 or 40 Ng/mil are causing these peoples all sorts of health risks. They seem pretty healthy to me, and they don't seem to be falling much when out on their daily hunts. Every time she cited D supplementation she failed to cite the type and dose of D. Daily or semi daily supplementation has been shown to increase active circulating D levels a month or two after starting D3 supplementation. D2 supplementation is the only form that can be prescribed, and is usually offered in large boluses separated by a week or more per dose in studies. All the D2 trials I've seen have been ineffective in raising active D levels. I find that the negatively biased D trials use D2 and / or poorly absorbed D3 supplementation to cast D in a negative light. The "fall study" is the only one where she detailed the complete dosage plan. When citing the "study evidence" that she is basing her claims on she constantly uses weasel words like; perhaps, maybe, etc. for the fall risk claims etc. I find that this type of wording is typically used in these trials that have vague findings, in order to alter the narrative on the importance of Vitamin D for whole body health. I could go on for pages and pages, but suffice to say I find that this Doctor, well meaning or not, is a danger to the Health Spans of everyone who watches this video and falls prey to the narrative that she is peddling. Please everyone, look into all the evidence you can find in the time you have available, to see for yourself whether her claims or my claims that Vitamin D is the most important Molecule for overall health other than Oxygen and Water are accurate. Peace, Love, Health, and Freedom, to all who are fortunate enough to strive for these goals. 🙏 ct

[@criticalthought7527]

I offered a detailed reply to your comment. Unfortunately is was a wasted effort as is has been deleted by the algorithm. Suffice to say that I have over 15 years of personal research to support your claim. Peace, Love, Health, and Freedom, to all who are fortunate enough to strive for these goals. 🙏 ct

[@Kinkle_Z]

Me too... retired CLS. I don't expect too much from MDs, After all, their education is geared more towards writing pharma scripts rather than looking into the root causes of disease and fixing the root problem...and typically the fix involves a proper human diet, regular exercise and good sleep, but there's very little profit in healthy patients.

[@denniscerletti2244]

I would recommend when you take vita D3 to take vita K2 with it. I have read D3 alone would have the tendency to take calcium from the blood and put it into the soft tissue whereas K2 would help put the calcium into the bone.

[@deepost2604]

I began taking D-3 with K-2 after getting an osteopenia diagnosis. As you state, the K-2 is supposed to help deliver the calcium to the bones. Since Dexa scans are scheduled 2 years apart, it’s a long period before effectiveness can be determined.

[@MikeG-js1jt]

You may be following guidelines created from remarkably limited studies, including the current ridiculous RDA

[@esecallum]

I agree. she is ignorant and arrogant. same copy/paste BS per orders from bigharma. The problem is too little. This little stooge parroting their bs

[@SantiagoHHC]

@SantiagoHHC The information presented about vitamin D is incomplete and only based on the scientific studies mentioned. Over 40 years of practicing naturopathic medicine, I have come to the conclusion that many of those “scientific” studies, (sure are high level research), but are bias and really serve the interest of the pharmaceutical industry. Who are the individuals behind the studies? Do they serve or are affiliated with the industry? Who sponsors such studies? Unhappily you don’t disclose that information. As a MD, of course, you want to keep your license. If you don’t support the industry, sooner or later some regulatory body will look into your practice. The pharmaceutical industry has never been, and will never be interested in healing people… only in monetary profits. Very, very few of the scientific studies are free from bias and monetary interests. I very respectfully encourage you to look for a study that test high doses of vitamin D3 (daily 10,000 IU) administered along the co-factors needed for the proper utilization of that vitamin D. Vitamin K2, magnesium and zinc, in particular. I bet you will never find such a study.

[@kurtvega3053]

I'm sorry not checking seniors vit D levels is a terrible idea.

[@set3777]

It has now being found that people on Carnivore (high animal fat) diet do not get sunburn and skin cancers. So it was the consumption of seed oils that had been stopping the skin from manufacturing Vit-D when skin is exposed to sunlight. Vit-D is just a skin- sunscreen for your DNA. Just eat animal fats and avoid seed oils, and your body will recover manufacturing Vit-D when you go out in the sun.

[@KarlBunker]

Because ... ?

[@laurie2218]

@@KarlBunkerseriously? Lol

[@jameskantor0459]

Because everyone should know what their blood levels are!

[@KarlBunker]

​@@jameskantor0459 The point of this video is that the information about your vitamin D level simply isn't useful. If you don't know what your level "should" be, and/or if it's highly unlikely that trying to adjust your level will do you any good, then there's no benefit to knowing what your level _is._ Do you know what the average length of your eyebrow hairs is? You could get that checked, so why don't you? You don't because having that information would be useless.

[@teresamexico309]

"You probably don't need to have levels checked" ...if any dr tells me that, I would run faster away from them.

[@Shadow-bs1iu]

😂

[@hieu350]

What are the real motives to talk people out of testing vitamin D levels? This is like what was said by that ADA : Do not test insulin ! Even a child knows the motives! What is "officially" said by "the authorities" is not always true and correct.

[@7774-o9w]

@@Shadow-bs1iu ABSOLUTELY RUN VERY VERY FAST LOL

[@tracysmith-yv5lt]

you probably should i have never had any due to having a routine operation in the 80s 4 decades ago. I normally get it from having a parathyoidectomy removing the parathyoids via kneck surgery gets me now im 50 how the hell did they miss it after having 2 c-sections. im low in calcium aswell has to be very low and they got it doubled before they found out could have died went up to 3.8 should be 2 normal people calcium is around 10.

[@teresamexico309]

​@@tracysmith-yv5lt I am sorry about it. Doctors might be well intentioned but many of them are not properly trained and they do not look out of "their box". A Vet might do a better diagnosis :) I do not have pets (I like animals to live in their natural environment and free) but when people take their pet to the vet, the first thing the vet ask is: What is he eating? and from that on the vet does his/her job. This video is a copy cat of one from the endocrinology society. On the other side there is an interesting video about vit D form a Japanese channel. I will try to find both links. Take care!.

[@janiceimel9299]

I went to my PC due to a strange rash on both my lower legs. She gave me a salve with minimal results and did not want to even look at my blood work results I had done on my own which showed a very low level of Vitamin. D. Luckily, I went for a consultation with a doctor who was doing stem cell therapy for joints and I showed him the rash & he immediately said “you have low vit D” I showed him the blood work which confirmed his diagnosis. Started taking very high vit D w/K supplement for one month and the rash disappeared entirely. Your advice to not check for Vit D routinely in elderly is awful. I’m very disappointed in this podcast as I have been watching your podcasts for a while. BTW I’m 78 yo.

[@esecallum]

she is working for DRUG companies

[@lesleyvivien2876]

Janice, if I had a GP who had blood test results available, and refused to look at them, she wouldn't see me for dust. I'm glad you ran too!

[@garyssimo]

I reported this as misinformation aimed at making $$ it needs removed. Fast! Do no harm lady!

[@esecallum]

@@garyssimo Conflict of Interest Disclosures: Dr Chen reported receiving grants from Kowa, AstraZeneca, and Ipsen outside the submitted work. Dr Fontana reported receiving grants from Takeda Pharmaceutical Company and Kezar Life Sciences outside the submitted work. No other disclosures were reported.

[@lesleyvivien2876]

@@garyssimo I wish I'd thought of that! Off to report it as misinformation.

[@rodpettet2819]

I think you should review this video doctor. I'm 80 and take between 5000 and 10000 IU daily. Much less my lumbar spine aches and I have dreadful sciatica. I boost the dose and the pain resolves in a few hours. I started taking 1000 IU a few years ago with K2 and magnesium and my chronic sinusitis that had been troubling me for years cleared along with my no longer needing asthma medications. I was also able to cease my cpap therapy. I feel so much better than 5 years ago. We all have different metabolism and maybe mine is not so efficient. D3 in isolation is pointless and possibly dangerous.

[@marksanbourne3064]

You rock sir. I’m at 10K 3x week in summer and daily in NEng winter. I do K2 in liver, dairy and make natto in the winter. Vit A from small fish. Mag and boron as well. AINT been sick in 26 years. No jabs other than one T-DAP. I’m 70.

[@STree42]

Vitamin D does not get absorbed in a few hours. You're noting a placebo effect, which is harmless except that excessive Vit D levels (> 40) have been associated with greater mortality in every study I have read.

[@rodpettet2819]

@@STree42 Ha ha ha. Powerful placebo. It was a long time before I associated the vitamin D3 and the pain resolution.

[@STree42]

@@rodpettet2819 "I boost the dose and the pain resolves in a few hours." That's not the way vitamin D is metabolized. Placebo effects can be real, though. And they can mask internal damage. Be careful out there.

[@petey4018]

@@STree42 Every study you read? Name two!

[@bettyhappschatt3467]

I am working in an psychiatric outpatient clinic. 25% of patients are not vitamin D dedicient and there is evidence, that the deficiency can contribute to low mood so any psychiatric symptom is a reason to measure vitamin D.

[@MiroBG359]

psych drugs will deplete B and D vitamins, and who knows what else

[@Ernesto7608]

In this video there are basic, serious flaws that make it completely untrustworthy. WHERE does this idea come from that such an important substance as vitamin D should not be tested unless its value can cause a symptom??? IS this how medicine should be practiced ??? And the excuse is: because it burdens the medical practice! One more lab-work data among tens of others is so important? A second serious flaw is to dictate the DOSE of this vitamin to ingest, which has such a variable absorption rate!! This is PRECISELY the reason to test it.

[@lynndietz476]

The studies cited did not seem to consider the benefits of Vitamin D3 taken with vitamin K2/MK-7 on a person's immunity system.

[@MrJaggg88]

It's essential to take K2 Mk7 with your D3 but the K2 must be the all-trans form and not CIS (synthetic) or combination

[@juliab6572]

​With all the propaganda and mis/disinformation,where does one go?@@MrJaggg88

[@AsanTole]

​​@@MrJaggg88Many thanks for that valuable piece of information concerning the distinction between the All-trans and CIS form of MK7. Even reputable supplement manufacturers don't seem to include this specification on their labels, which leaves consumers in the dark, doesn't it? Do you have any advice on how to obtain the full information on the chemistry? Maybe I'm missing something?

[@laurie2218]

Dr. You need to cite your research. Many of us may like to read these studies ourselves.. Thank you!

[@charleslindsey6789]

She said, multiple times, that she posted links to the studies in the show notes.

[@STree42]

Best list of studies is at consumerlab.

[@BetterHealthWhileAging]

Yes, you can find the links to the research in the podcast show notes, here: betterhealthwhileaging.net/podcast/vitamin-d-best-dose-in-aging-2024/

[@jameskantor0459]

Not checking Vitimin D3 levels is wrong! Say not to do testing is malpractice

[@harrybarrow6222]

The studies reported in this video seem to focus on completely the wrong (random) things, like falls. Vitamin D is vital for the immune system and it is consumed when you are fighting infection. I recall a study that said people who were hospitalised with Covid were found to have vitamin D deficiency. The death rate for Covid at my age (76 then) was about 20%. So, in 2019 I started taking vitamin D daily to support my immune system. Currently I am taking 4000 IU of vitamin D3 (plus K2). In October 2019, I experienced what was one of the worst bouts of “flu” I had ever had. I wonder whether it might have been Covid…. But I survived. I am now 81, still taking D3+K2 and a few other supplements, and I feel great. 😄

[@Inkling777]

I agree, finding it rather bizarre that these researchers were so serious about seeing if there was a relationship between Vitamin D and falls. I wasn't aware that the vitamin played any roll in our ear-based balance system.

[@njccbr9910]

Yeah we had it in December that year and it was pretty severe and have never had Flu that bad in my lungs before. Many people i knew had it too. The conclusion was Covid was in the UK much earlier than we were led to believe.

[@DavidHenderson-n5m]

You have not said anything about vitamin K2 which is supposed to migrate calcium away from artery walls and into the bones. I take a vitamin K2-vitamin D combination for this reason. Question: lifeguards have had their vitamin D levels measured at 80-90 ng/mL - do they suffer any ill effects from too much sun and vitamin D ?

[@STree42]

We don't know. But we do know that levels that high are associated with overall higher mortality and CVD risk. It doesn't make the headlines, but if you actually read all of the studies, you'll see the clear trend that vitamin D levels are a U shaped curve. You don't want to be really low or really high.

[@elbowroom3663]

Suggest that you touch base with an actual vitamin D investigator for a better understanding of this arena. Dr. Bruce Hollis Medical University of South Carolina.

[@waltermagee2305]

Establishing adequate levels of vitamin D is difficult because there are many factors involved with what may be required for an individual. The only detriment I can see in high dose supplementation is the possible up or down regulation of cell surface receptors in response to vitamin D availability. To my knowledge, there are no studies observing this. I am not a big fan of " fall frequency" studies as I believe them to be useless. Also bone density studies lack the effect of increased exercise and related bone stress factors that enhance bone density over time. Focusing on one parameter in a complex picture of variable vitamin D levels is really not adequate in making claims on MDRs due to the numerous influences of factors that are different in each individual case. I think bi-annuai testing to establish basal levels of vitamin D and later observing effects of supplementation may be of benefit, rather than flying blind, making general assumptions about a population.

[@moff1]

Totally agree. Talk about simplifying as if D3 was alone and never interacting with body or environmental factors!

[@joanhyde1745]

I am older, and was encouraged by my doctor to take 6000 IU daily.

[@adelarsen9776]

You could safely take 10k of D3 per day. In fact, you could take 100k per day and it would only do you good. Try 6-8k per day and take 100 mcg of K2 with it.

[@STree42]

@@adelarsen9776 Do some research. Levels over 40 are associated with dying earlier. In multiple studies. There is a sweet spot to be in. Megadosing ain't it.

[@adelarsen9776]

@@STree42 If the study does not match the reality then the study is wrong. 10k of D3 per day is only a good thing.

[@STree42]

@@adelarsen9776 What does "match the reality" mean? If you don't believe in properly conducted studies, you're living in the 1600s.

[@adelarsen9776]

@@STree42 If the study does not match the reality we see then the study is wrong. Take for example all the studies that show that eating saturated fat gives you a heart attack. They are all 100% wrong because they're based off ideological epidemiology. I unblocked my arteries and got rid of CVD and T2D by eating only fatty red meat, salt and water for 12 months. I eat more animal fat than animal protein. That's all I eat. The reality is not the same as the studies. You see ? You might want to look into who funds studies and what agenda they have.

[@kodowdus]

As someone who has done epidemiological research on the "vitamin D" status of nursing home residents, I would submit that the term itself is a misnomer, given that it is a prohormone and that its presence in food sources (like that of phytoestrogens) is incidental worldwide. On that basis, I would also submit that the use of "vitamin D (cholecalciferol) supplements" should be referred to as "vitamin D (cholecalciferol) replacement" and therefore as a pharmacological intervention. Conversely, the notion that "normal" levels of serum 25-hydroxy vitamin D (AKA 25-hydroxycholecalciferol or calcidiol) should be based on levels in people living with post-industrial levels of sunlight exposure doesn't seem logical on the face of it. Also, intervention studies suggesting the benefit of "vitamin D" on non-skeletal outcomes such as immune response (for example, European studies suggesting a beneficial impact against morbidity from COVID-19) are commonly done using 25-hydroxycholecalciferol (i.e., the form of "vitamin D" normally derived by the liver from the cholecalciferol that is normally produced and released into the bloodstream by human skin upon exposure to sunlight) rather than oral cholecalciferol ("vitamin D") replacement.

[@thetruth9974]

I suppose when people are ill, and during supposed pandemics, it would be more efficient to use 25 hydroxy D3 or 1,25 dihydroxy D3 (active D3) rather than D3 (Cholecalciferol) alone as the former molecules could generate much faster beneficial clinical effects. Otherwise, the body would be required to convert Cholecalciferol into the active D3 via two steps and that would waste time. In "medical emergencies", the best form would be the most active form as the goal is to minimise risks and maximise benefits to patients as quickly as possible. In a person with poorly or non- functioning liver and kidneys , supplementation with Cholecalciferol (D3) would generate a lower yield of active D3 (1,25 dihydroxy D3) with fewer positive and meaningful clinical effects. In individuals with healthy liver and kidneys, supplementing with D3 (Cholecalciferol) should not be an issue as the tissues would have no problem converting it into its storage form (25 Hydroxy Cholecalciferol) as well as the active D3. Not measuring Vitamin D3 levels and neglecting or minimising its importance and role not only in maintaining optimal health as well as reducing the incidence of various forms of chronic diseases are tantamount to ignorance, disinformation and medical negligence.

[@kodowdus]

@@thetruth9974 I can't argue with the value of measuring serum calcidiol levels in general, but I don't think we know enough to assert that oral ingestion of cholecalciferol (never mind ergocalciferol, which is the analog typically used to "fortify" cow milk alternatives with "vitamin D") has an identical physiological impact to endogenous synthesis from 7-dehydrocholesterol and direct release into the bloodstream by the human skin (which is distinguished by a self-regulation mechanism among other things).

[@withidea]

I'm not entirely sure about this presentation, but I want to share my experience with vitamin D. Since I increased my vitamin D level to over 100 nmol/L, I haven't had a single cold. I used to get a week-long cold twice a year, which I thought was normal due to seasonal changes. This was six years ago. Before that, I visited my GP because I was constantly feeling tired. After running several tests, he recommended checking my vitamin D levels, which turned out to be 18 nmol/L at that time. I didn't know much about the importance of vitamin D back then, but now I aim to keep my level around 125 nmol/L and have it checked regularly. My mood swings improved dramatically as well. Vitamin D is more than just a vitamin; it's more like a pre-hormone that aids in hundreds, if not thousands, of functions in the body. It also acts as a natural sunblock, and I hardly get sunburned anymore (I avoid using chemical sunscreen products). Also, I never got COVID-19, even though most of my family and friends had it at least once (I did take the initial rounds of vaccines, though). All of this may or may not be related to vitamin D, but this is my experience, and for me, it is convincing enough. The research in this clip should be cited.

[@Dr_Boult]

Without a discussion of natural production of vitamin from the sun, the amount of supplementation is not well founded.

[@lasal134]

Tank you for a very clear presentation of this study. It is so good to see real results, positive or negative, as you say; there is so much to learn and all information is important. And such controlled trials are the best!

[@noelteague4303]

Hi Leslie Just a quick personal story from the NHS in the UK. About 3 years ago I went into Day Case Emergency with high blood pressure and had some blood tests. I had been taking Vit D for about 5 years. The Consultant asked me if I had been taking any other medication. I said No (68 years of age at the time now approaching 71.) He informed me that the Calcium in my blood was to high and I should be taking Vit K2 MK7 to help reduce the Calcium in my blood and move it into my bones. Since then each time I have had a number of blood tests and my Calcium levels have reduced and now more or less normal. I am taking Amlodipine and more exercise and blood pressure near normal. Hope you find that interesting.

[@peterpomponio1118]

Read the book, “The Miraculous Cure for and Prevention of All Diseases by Jeff T. Bowles” for another perspective of D3. This book was recommended by Dr. Eric Berg during his KZbin video on Vitamin D3.

[@marioct130]

So, don't test for vitamin d deficiency until after a person shows signs of osteoporosis?

[@marksanbourne3064]

I almost fell over laughing on this one. My dad had osteoporosis in the late 1970s, 80s, 90s and was a Guinea pig at Mass General Hospital for over 20 years. If he were still alive, he would give this mouthpiece a piece of his mind. It’s too late for many who get osteoporosis early in life. I tested myself 25 years ago at 45 just in case. This piece of garbage is not even close to being viable advice. It should be pulled from the internet. Plus … it is totally convoluted at most every step of the presentation. Junque! As a friend says.

[@thetruth9974]

@@marksanbourne3064 Exactly. If you deny people testing for Vitamin D and provide disinformation and biased data that persistently tries to reject the evidence calling for the need for various supplements and good nutrition, you are moving away from prevention of chronic diseases and effectively promoting their initiation, development and progressive advancement, thereby enriching the coffers of the Medical Industrial Complex (MIC). The MIC and corporate banksters who finance them demand an ever increasing return on their monies in perpetuity not by making people healthy but by reinforcing public health policies that have been established to make people more unhealthy and to find all sorts of ways to transition acute, short-term illnesses into chronic, debilitating and incurable diseases.

[@tfoxen7518]

You can have an excellent consistency of Vitamin D levels before an osteoporosis diagnosis. Many small framed individuals and fitness enthusiasts can fall into this category, also.

[@marksanbourne3064]

Well, I’m hardly small framed. I’ve gone only from 70..25” to 68.75” in 70 yrs. Better than my dad who was not small framed but died that way from osteoporosis. He went from 69.5” to 63” and 165 to 135 lbs at around 70. He ate poorly as a kid as his dad deserted the family. As far as me losing a 1.5”… well, I’ve played harder than most people for close to 50 years. Logged 10k+ miles long distance hiking with rarely a pack weight under 50 lbs … 60-65 mostly… and 70-80 occasionally for weeks. Slept in the woods for 2-3 years. Logged another 10k+ miles running while in the navy over 6 years. Day hikes and cycling for years. Hard manual work for 25 years including some farming. So, Losing 1.5” is not really a surprise. I still have the ability to put 2” on my chest every spring when I open water swim over past 10+ years. I work outside often for hours in shorts for 6 months. Less in other months. So I really don’t worry about Vit D but I use supplements for other items that I take… just in case as it has a hormonal affect as well.

[@marksanbourne3064]

Well, I’m hardly small framed. I’ve gone only from 70..25” to 68.75” in 70 yrs. Better than my dad who was not small framed but died that way from osteoporosis. He went from 69.5” to 63” and 165 to 135 lbs at around 70. He ate poorly as a kid as his dad deserted the family. As far as me losing a 1.5”… well, I’ve played harder than most people for close to 50 years. Logged 10k+ miles long distance hiking with rarely a pack weight under 50 lbs … 60-65 mostly… and 70-80 occasionally for weeks. Slept in the woods for 2-3 years. Logged another 10k+ miles running while in the navy over 6 years. Day hikes and cycling for years. Hard manual work for 25 years including some farming. So, Losing 1.5” is not really a surprise. I still have the ability to put 2” on my chest every spring when I open water swim over past 10+ years. I work outside often for hours in shorts for 6 months. Less in other months. So I really don’t worry about Vit D but I use supplements for other items that I take… just in case as it has a hormonal affect as well.

[@aprilek6003]

I am shocked to hear a physician saying this. Of course we should check vitamin D levels especially in the older population. How can you not know/understand how important this hormone is in health. Please everyone have your levels checked and get them between 50-80 ng/ml your immune system will thank you

[@donnaallgaier-lamberti3933]

I find this VERY interesting. I'm age 73 and have Autoimmune Hashimoto's. I see an Integrative Physician and my physician wants my Vitamin D to be between 80 and 100 on my blood labs due to my Hashimoto's thyroid issue, osteoprosis and osteopenia and a hiatial hernia. I am taking 10,000 IU of Vitamin D plus L 2 per day in order to keep my D at 80. (When I go down to 5,000 per day my levels drops to just 30.) When I see a traditional western medicine physician is always ALARMED at my high levels. However I feel best at 80 my brain and memory is excellent for my age AND more importantly I have restructured my bone mass by 6% as week. I'd be very interested in what you think?

[@adelarsen9776]

Carnivore Diet. Dr Ken Berry.

[@ericac7870]

It was my rheumatologist who recommended taking 2000 IUs of Vitamin D daily, as I have osteoarthritis. I just double checked, and it does look like the idea is legit. I can't post links, but I found a paper from 2023 called "Relationship between 25-hydroxy vitamin D and knee osteoarthritis: a systematic review and meta-analysis of randomized controlled trials" and it does seem to confirm that it can keep OA from progressing as quickly. So I will keep doing what I am doing, which is skipping it on days I eat fatty fish. Oddly, my last Labcorp report (2022) gives the reference interval as 30-100 ng/mL. I am at 37.4, and that made me think I was at the lower edge of normal. But seeing your guidelines I guess I'm doing just fine.

[@geonerd]

I started taking ~8K a day, plus twice a week deliberate sunbathing, in 2020 in an attempt to not die from the virus. Expected nothing, but woke up about a month later to a pain-free hip joint for the first time in years. Turns out VD is indeed an anti-inflammatory, and it can have a significant effect on both RA and also OA pain. My aching back and torn-up plantar area also improved radically. I literally went from limping ~1/4 mile at a time to walking indefinite distances pain free. Nothing else in my life, diet, nutritional intake, etc. changed. And I've done very deliberate tests where I stop taking D. Within about 10 days, I start to experience minor pain in the joints. A week of ~15K a day jump starts my D levels back to an effective range and the pain vanishes. Try bumping your dose, and target ~70ng. The thing is, our immune cells lack a cell-surface receptor found on bone, kidney, and other 'classic' D tissue. The immune cells rely on passive diffusion of D across the cell wall, and this requires higher blood/serum levels. Many immunologists suggest 60ng or better. Give it a try! ;)

[@Person-mh6xq]

@@geonerdexcellent news for you! I recently started taking 10,000 iu daily (with 200 k2 in the same pill) and striving for 60-70. I’d been stuck in the 30-40 range but recently hit 52.

[@STree42]

37 is fine. There is actually no evidence that levels > 30 cause any benefit, so the lab reference ranges are quite curious and not evidence based.

[@johngoh767]

Dr. Leslie Kernisan, very informative, I am 87 years old and I take Vitamin D3 [sunshine vitamin] + vitamin K2 combine. One capsule contains 10,000 IU [250mcg] + K2 100 mcg [as Mk7]. I take 3 capsules daily [morning, lunch and dinner] since 2023. Many experts consider the upper limit amount to 100,000 IU has not provide any sign of toxicity. Your comment please.

[@jrstf]

Dr Kernisan is wrong, you should test your blood levels of vitamin D.

[@GerardSerlin]

“High dose “ is a red herring - rather than focusing on the dosage focus on the actual vitamin D level of the individual, which can vary significantly from individual to individual- irrespective of dosage or sun exposure, otherwise your not really giving sound advice .

[@esecallum]

Conflict of Interest Disclosures: Dr Chen reported receiving grants from Kowa, AstraZeneca, and Ipsen outside the submitted work. Dr Fontana reported receiving grants from Takeda Pharmaceutical Company and Kezar Life Sciences outside the submitted work. No other disclosures were reported.

[@ancabostinariu6550]

Taking vit D but not exercising in elderly for sure will not make a difference in cognition or muscle strength.

[@annettebaker1896]

I would ask who funded the studies. 😜

[@STree42]

You think corps are funding studies on Vitamin D?

[@alexshekhtmeyster7736]

Not checking levels is all about saving money to insurance companies. What about taking Vitamin D3 with Vitamin K2 to improve bone health? Any research on that. Empirically works well!

[@oldscribe6153]

There is still fog around the vast gap between 'normal' and 'optimal'. It can only be assessed with a Vit D3 (25 hydroxy vitamin D) patient by patient. You must also monitor Vit A along with D3. It is also important to assess whether K2 is a good idea to take with D3. An individual health profile for each patient, including the BMI is also indicated to arrive at the correct 'optimal' dose.

[@Lateawake1000]

I was very interested in watching this video. Most disappointing. No links to research. Can’t determine who funded research. Think I will stay on my higher dose WITH K2 which you failed to mention. My traces are based on research that I can verify. Thanks anyway.

[@BetterHealthWhileAging]

There are links to the research I cite on the related podcast show notes page, which is here: betterhealthwhileaging.net/podcast/vitamin-d-best-dose-in-aging-2024/

[@dougtexas9075]

During the COVID period, it was recommended that I take 5,000 units a day to boost the immune system. Plus, zinc.

[@BRChristiansen184h]

A few months into the covid 'pandenic' in my country I saw an announcement in the pharmacy saying: "From now on anybody buying vitamin D3 with a MD's prescription will not get this purchase refunded." It always could be refunded before covid, but suddenly not anymore. I guess the politicians knew or were worried that D3 might be effective and wanted to discourage those with a tight purse from buying it.

[@AnandaLove]

I'm not finding links to the research here. Also, what about the randomized control trials starting that people who had levels less than thirty had more chance of contacting covid 19, and a higher risk of mortality from it?

[@devadattan]

I learned MORE FROM THE COMMENTS THAN A CORPORATE CAPTURED PHARMA DR

[@kazzicup]

Yes. She is lying through her teeth.

[@PhilinWaterloo]

Cardiologist Dr William Davis would have issues with conclusions you have drawn with D3 and atherosclerosis. With al low carb lifestyle, D3, magnesium, iodine, and Omega 3, he has reversed plaque scores in thousands of patients. Me being one of those patients. With standard of care/statins , this cannot be done

[@henry6451]

The tests described are irrelevant or even deceitful since they are so far away from commonly suggested levels of vitamin D. They used very low dosages at very low blood levels Despite this there was some indication of immune function improvement. Try using daily 5000-10000 per day with blood levels above 60. Those are at the low end of what seems to actually be effective.

[@luiswhatshisname7667]

Not statistical significance does not mean that there are no differences but that the experiment could not detect them under the conditions of the experiment. One can always design an experiment that is weak enough to come out with ¨no significant differences ¨ for any treatment or on a population that is healthy enough already or eating enough enriched foods already that no differences can be measured.

[@henry6451]

She lost me at the recommendation not to check levels. Ideal way to ensure Health problems.

[@ronladuke7235]

Almost every person that was hospitalized for covid 19 had very low levels of d3,why didn’t you even mention this. Wait till grandma falls and breaks her hip then test her for low d levels, probably a death sentence for grandma but that’s ok because you were following the ( standard of care guide lines). Who paid for these so called studies,maybe a pharmaceutical company?

[@kazoz3520]

??? Why would a pharmaceutical company promote the message found in these studies to not take high doses of Vitamin D, & that testing & supplementation in the general population is not necessary (unless with a deficiency), if it meant they would sell less products? Or is it that you are not aware that big pharma companies own a lot of subsidiary companies, of which sell these supplement products?

[@kazoz3520]

P.s, for bone fracture prevention & screening, it's more useful if grandma is scanned for bone mineral density than testing for vitamin D levels.

[@andre495]

​@@kazoz3520Big Pharma earns more on serious treatments then on supplements.....

[@robertdyson4216]

I guess on this basis I take too much vitamin D. I am mid-80s. I have been taking D3, K2, Mg for some years. The D3 varies from 4,000 to 10,000 IU a day depending on time of the year. I have not had a significant respiratory infection for years. The most amazing thing of note is that I used to have 'cold sores' from time to time that I treated with Zovirax. Ever since getting my serum D3 up about 50 ng/mL they no longer appear. I don’t take any medications, I have no joint problems, I still play piano with accuracy and speed, etc. I will stick with having too much.

[@Ernesto7608]

How about all the people who see your video and decide not to get tested because they are asymptomatic, yet are deficient in vitamin D and are progressing towards serious symptoms. Will you take responsibility?

[@annelawrence5546]

Couldn't hear anything about the necessity of K2 for absorption of Vitamin D. Not clear if the double-blind studies she quotes included Vitamin D

[@KNRYtube]

Even 10,000 IU is only a quarter of a milligram - if a fifth of this is considered dangerously high then it's a pity you didn't show exactly the proof of this and the mechanism of the toxicity. What is your motivation for making this video, is it really to help people or to help the medical industry?

[@KarlBunker]

🙄🤦‍♀

[@banginghats2]

Yeah, I was in sunlight for 35 minutes yesterday, just wearing shorts, so about 80% uncovered, I could easily have produced 20,000 iu of Vitamin D3 in that time.

[@kodowdus]

​@@banginghats2It's also interesting to note that endogenous metabolism of "vitamin D" is self-regulating.

[@binglamb2176]

I may have missed it but I don't think you mentioned whether or not these trials included vitamin K2 with the dose of Vitamin D. This is a crucial factor along with magnesium when determining the effectiveness of vitamin D.

[@jonnyde]

FWIW I looked at the bone density/D3 study done in Calgary that you mentioned. To my horror I could not find one mention of K2 or MK7 being part of the study where D3 and calcium were being studied to see effects of supplementation on bone density of men and women 55 to 75. Over 300 individuals were in the study. I would suggest a followup to see how many of those individuals had heart issues after the study. The problem is (from studies found elsewhere), without adding K2 MK-7 to the D3, the added calcium is not going to bone: the calcium is likely locating to the heart and causes complications in that muscle. I am angry that my country has such poor regard for good science. I have to wonder if this was done purposely, for the benefit of some pharma pill push in the future..

[@keithrogers9741]

What? Older people should not ck their Vit D levels regularly particularly, if they don't show signs/symptoms of a deficiency. By the time you show symptoms a patient has been deficient for awhile. By the time lab deficiency results come in you and may suffer the consequences which is hard to get back being older. The RDA and studies quoted here are as usual just enough to prevent the symptoms of the disease and not the amount to be healthy

[@STree42]

This comment section should be preserved forever for future educational purposes, to answer such questions as: "What is anecdotal evidence?" "What is selection bias?" "How does the placebo effect work?"

[@JoeMicalizziMPC]

Sorry, really wanted to like this video but gave it a thumbs down because of the "Dr's" advice against testing for Vitamin D levels. My blood tests give me the results of all my vitamins and other facts that help my GP and me decide on how well I'm doing. Also, WTF is she doing quoting some BS study on Vitamin D and falling down. Who the heck is taking Vitamin D for that purpose???

[@ChadSharkeyNursePractitioner]

In the beginning of the Vitamin D craze, around 2000 to 2005, some of the data showed reduced falls in the geriatric population. As you can imagine, fall reduction is HUGE in this age group due to multiple injuries and especially the downward spiral that often follows a hip fracture in an elderly individual. Some felt the reduced falls with adequate Vitamin D levels was because of improved balance and other felt it was actually non traumatic fractures of the hip or fumur that caused the falls. The thought then was adequate Vitamin D levels reduced fractures in weak bones that happened spontaneous without trauma. Less spontaneous fractures with adequate Vit D and less falls. Given the recent large population research published in June 2024, thats not the case.

[@MikeG-js1jt]

@@ChadSharkeyNursePractitioner I dont believe falls were reduced at all, I think it only "appeared" that way, because mostly falls are only reported if something bad, like a FRACTURE happens as a result and I think people who had a history of higher levels of vitamin D had just as many falls but less rfractures, thereby seemingly less falls as there were less reports of those falls due to there being no or less fractures due to those falls.

[@bryanamspacher336]

​@MikeG-js1jt with that belief, it's hard to prove a negative. The finding around falls with fractures was that the falls were caused by the fractures in many situations.

[@slomo1716]

@@ChadSharkeyNursePractitioner I found the "falls" very interesting, because I am one of those older women who are seriously in danger IF I fall. I will not be able to get back up and I live alone. Great to hear some studies are being looked at for us who are in danger of falls. I have great bones and not fear of breaks, because I stay away from STATINS. I heard that the Vitamin D craze was because studies reflected cancer patients with Vitamin D deficiency, so the push was on.

[@ChadSharkeyNursePractitioner]

@@slomo1716 Thanks. Keep working on the leg strength and the balance and being safe!

[@seascape35]

Not checking vitamin D levels reminds me on how, for a time, the National (U.S) Preventative Task Force discouraged checking PSA for prostate levels for ALL men. Then many more men started popping into urology offices with advanced prostate cancer. Finally, the Board reversed itself and started recommended checking levels again for some men. Believe me, I know the PSA test is a poor test. But my point is that sometimes Authorities underestimate the need for screening.

[@JacyJ1]

What about the effect of vitamin D3 + K2 on bone absorption of calcium?

[@rredding]

So many great reactions here! OK, let's throw in a few cents. Blood samples of hunter gatherers : D3 levels around 70 ng/ml. Safe, adequate intake in general l:more than 4000 IU (100 mcg). Seniors, obese, dark skin: take more. I have a D3 issue: my genes don't allow for proper D3 processing. I take 10.000 IU daily and have a blood serum concentration of 66 ng/ml. Always combine D3 intake with magnesium (bisglycinate) *AND at least 100 mcg vitamin vitamin K2 (MK7 form) per day*. I also have a few mg BORON. This promotes free D3 and helps me with my arthritis.

[@LongNguyen-ij1hx]

Thank you very much for your wonderful information. Best wishes to you and your family!

[@MaryMchugh-y8b]

My vit D very very low when diagnosed with MS, supplement 2,400 daily brought it to normal . Being treated for the MS

[@christopherturner1547]

suspicious wording in the studies suggest bias. Normalising results by BMI etc is good way to hide benefits. Monthly injections? Designed to fail? I remember the spectacular good results in the Spanish covid trials of calcifidiol (active form vit D, works within 2 hours). I keep a stock of calcidiol for emergency use during infections and use daily 4000 IU of the normal D3 which takes 2 weeks to convert in body.

[@victorortega9845]

My Sister lives in Florida and She's 82 and She's always outdoors. Sunny V.D. everyday. She's still healthy and full of Energy. " is there a problem with getting 15,000 of IU pre day"?

[@Tommy_007]

7 months ago I was diagnosed with ulcerative colitis. I have (of course) studied this inflammatory disease intensively, including the benefits of vitamin D supplement. I got absolutely no information about diet or supplements from my doctors, not even after I asked for it. Only a nurse recommended vitamin D.

[@JeanetteSmith-mt7ym]

For a year or more I was taking D-3 K-2 10,000. When I was tested at my annual my vitamin level was way over what it should have been. I have stopped taking my 10,000 dosage and it took 3 months to get it down to slightly more than it should be. I have not heard of anyone else having too much Vitamin D.

[@smae433]

Thank you for your work.

[@dalequale9365]

Thank you Dr. One less thing to worry about. My vitamin D level has been 20 ng consistently on my annual VA blood work. I'm 69 and eat low carb paleo and 🏋 and HIIT. No symptoms, no Rxs. How I FEEL each day is my North 🌟. 💪🙏

[@jrstf]

20 ng is wonderful, but if things somehow go bad and you get an infection, your immune system will use up vitamin D to fight the infection, thus lowering your blood level. You may well find the level drops too low to effectively fight infections, and it takes a couple of weeks for vitamin D supplements to take effect so it won't work to start after you get an infection. You could take Calcifediol to rapidly increase vitamin D levels but you'd have to go to Italy for that, I don't believe the US permits such usage. That is why 40 ng/ml is recommended, it gives you a lot of margin in case things go poorly for you.

[@noelleohanlon6738]

There do seem to be enormous gaps between research involving tens of thousands of vid d per day to recommending 800 a day. Also the particularly relevant info about the risks of 4000 or more fore elderly people gives no detail about the research. So overall it seems quite unbalanced to me as a psychologist

[@aratimala]

I was issue Vitamin D3 high dosed after Spondylodesis, Back surgery, and have been taking it for 14 years. I am afraid to reduce dose at age 66, and the high D3 helped my immunsystem in addition. I do take 20000IU weekly.

[@stanleyyu2079]

+ K2(mk7) + magnesium

[@aratimala]

@@stanleyyu2079 , I was taking more k2 for a while, but as a vegetarian I get enough Vitamin K and the body / gut bacteria converts it to K2, Magnesium is rich in green veggies, and occasionally I do take one.. Could do so more regularly, thanks.

[@stanleyyu2079]

@@aratimala Yes, our body can convert k1 to k2. K2 has no upper limit. Nobody wants hypercalcaemia

[@DavidLGreen-yw1wg]

@@aratimala Gut bacteria that create K2 are too far down. Absorption in is the small intestine. This is the reason why apes eat their feces. This is the only way they can get all the nutrients from a plant diet and their low down gut bacteria.

[@kaazan1]

From what I understand, do the studies you cited refer to the simple administration of vitamin D3? Ignoring important if not fundamental factors: such as the intake of magnesium in assimilable forms the intake of vitamin k-k2 from diet or supplement it has been known for decades that vitamin D alone is useless except in the case of serious deficiency, so I don't understand the meaning of these studies. Great video, but I recommend a serious study on the topic. regards.

[@sarah2go]

Vitamin D at 5000 iu fine if you add 200 mcg of vitamin k2. Also completely inaccurate and misleading regarding statins and longevity benefits.

[@KarlBunker]

*Citation needed. -- Or are we just supposed to take your word for it?

[@BRChristiansen184h]

Where did the vitamin D3 come from in these trials? Was it extracted from food or did these trials use synthetic vitamin D? I think this is important because synthetic vitamin D might not be so readily absorbed in comparison with the natural version. In addition I guess it makes a difference if one absorbs Vitamin D from the ultraviolet radiation of the sun compared to oral absorption??

[@simpleshoes]

Are you an MD? A registered dietician? A biologist? What qualifies you to make these remarks/opinions.?

[@joanhyde1745]

You are talking about how much to take daily, and you are correct, however the doctor is talking about blood levels.

[@BRChristiansen184h]

@@simpleshoes Who are you talking to? You should add name in order that we know...

[@Kinkle_Z]

My D3 label just states 125 mcg per soft gel or 5000 IU. I check my Vit. D because it was really low in the early 2000s. A few days ago the result came back - 57 ng/ml, smack dab in the middle of the "normal" range. I live in the desert where sun exposure for half the year is a problem because of the intense heat. So I do supplement and track my D a couple times/year.

[@gionet601]

Remember, peerreview papers, Or not what they cracked up to be, People them write them they want certain outcomes to get more money to make another paper. It’s so corrupt so corrupt, but what are you gonna fix this?,

[@quakerorts]

I'm disappointed that you didn't address flu prevention and other immune issues.

[@anneburland5306]

Thank you. Both interesting and thought-provoking, as are the comments. Now I understand why my MD didn't check vit. D levels at my last checkup (I was 69).

[@merlinaweaver8152]

From studies I have read it is always counterproductive to give single bolus doses of vitamin D only once a month as after a few days you crash into a low. Also she failed to mention magnesium, which is needed to make D work, or K2 that is needed to put calcium in the bone. A very disappointing video.

[@fernandorubinski9526]

to call 2000 iu/day a high dosage is ridiculous. That number is far below what the body makes by itself in less than half an hour of full sun exposure at noon

[@Jeffs60]

The main ingredient in d-CON rat poison is the same ingredient Cholecalciferol they put in synthetic Vitamin D pills. The sun is different and you can't overdose on the real thing only get a sunburn but that is a different topic.

[@ronaldparvanian6949]

Highly recommend the recent interview of Jeffrey Bowles Phd. by Dr. Berg on youtube. This video repeats dated disinformation.

[@slomo1716]

Dr BERG IS NOT A MEDICAL DOCTOR - DO NOT BELIEVE HIS NONSENSE!!!!! He is a chiropractor and a scientologist - SCAMMER!!!!

[@deegir3354]

What about the role of K2 - which is talked about a lot. D3+K2 is recommended together. Since it is so commonly recommended I’m curious to hear your thoughts about it. Can you do a quick video on that? Thanks.

[@henrylappen9362]

What about the positive effect it has on the immune system ??? Nothing mentioned in all your mentioned tests??

[@Whatizzit]

Thank you for this rational and clear presentation on vitamin D.

[@simsammalinao1823]

The research review is informative. Please include more, as the immune function of vit D3 is well established.

[@DF-ju4cw]

against all studies! But of course she does not know! Anyway she has to prove what she says

[@agelessageing]

Extremely informative video. Thank you, Doctor for making it so simple and understandable.

[@luiswhatshisname7667]

I trained as an agronomist. One can not say that some fertilizer does not work. I can only say that that fertilizer does not work under xyz conditions. It might need other minerals present to work, it might need certain levels of moisture in the soil to work, that same fertilizer might work using certain techniques of application and not others. Some fertilizers only work if weeds and pests are under control, otherwise you are just feeding the pests. The same fertilizer can have little effects on the yields but reduce the risks of having a lower crop yield. and then there is the cost. Is it worth it? How expensive is vitamin D? what are the studies on respiratory diseases or other diseases? Did the studies measure water intake? after all, vit D metabolism is not complete unless it goes through the kidneys!

[@TheVafa95]

Thanks for the information. Their advise is to wait for symptoms like fractures and then test for vitamin D. 😂😂😂 Ignorance is bliss.

[@aerocoaster3252]

I hate it when they don’t tell you for how long the randomized trial was conducted. They administered D3 for three whole months? Big whoop. Tells you nothing.

[@RandallAIM]

Easy enough to check with the links to the trials quoted.

[@rudycandu1633]

I checked the trials and the first was for a median 5.3-year (range 3.8-6.1 years) intervention period. The Bone Density and Bone Strength trial was 3 years. The Australian trial was for 5 years.

[@eileengray9942]

Thank you very much for sharing this information

[@luiswhatshisname7667]

on what population were these trials done weight, skin pigmentation, kidney health, latitude, sun exposure, economic status? what levels of vit D were they taking in their juice, milk, cheese? What was the expected limit of differences that could be detected by the experiments?

[@lchangc]

Any thoughts about the need also to ensure sufficiency of K2?

[@C0nstellati0ns]

I know of someone taking a liquid vitamin D supplement that was 10 times too strong (production error), at 800 mcg / 32000 IU per. drop, and took many many drops. This person nearly died from hypercalcemia / kidney failure, and spent weeks in dialysis at the hospital.

[@DavidLGreen-yw1wg]

Was she taking the co-factors - K2, Magnesium, Zinc? You cannot take D alone. And you cannot do a valid study, either!

[@Jessica-kk1cz]

This thumbnail video title entirely irresponsible and hurtful from a public health standpoint given the epidemic rate of Vitamin D deficiency in this country. Shame on you. 😡

[@blvany]

I wish a study had been done on the effects of Vitamin D on the immune system. I was under the impression that Vitamin D supported immune system functioning and that people with low Vitamin D levels fared much worse during the Covid-19 pandemic for that reason. I currently take an average of 3900 IU daily (supported on alternate days with 180 mcg of Vitamin K2), and my current Vitamin D level is in the low 50s (measured in ng/ml) which is above the range you consider optimal (20-40 ng/ml) but not by a large margin. I am considering cutting back my current dosage to 2900 IU daily and seeing what happens to my Vitamin D level. Also, I see no reason why an older adult should have to wait until they get sick or develop symptoms before they get their Vitamin D level checked. One or two initial baseline measurements might quickly determine if an older person is below 20 ng/ml and suggest the need for Vitamin D supplementation to prevent development of adverse symptoms.

[@robinq5511]

Were there any studies in which Vit K2 (MK-7) was included?

[@ukinvasion2012]

When a rep for big pharma makes a video telling you to keep your vitamin d levels low, you should probably go out and take as much as you can. I take 14,000 IU a day all year round and get lots of sunlight and i feel fine.

[@TrustInJesusChrist-John3.16]

Huh ?? I have benefitted immensely from 5,000 units of vitamin d3 per day. I used to get sick often in the flu season but now it's a fast event and pretty much a breeze if I catch anything... It's also helped my mood and energy. There's a lot of research that would disagree with this video.

[@Reader767]

Thank you for this informative Video. I take 1000 IU Vitamin D on daily basis how much Vitamin K2 do I need to take. Thanks in advance

[@katherinetucker5380]

Thankyou for this good information.I think everything in moderation inc Vit D3 and 800 iu daily stops one going low on Vit D3 and eating a healthy diet also good.

[@kmyc02]

The title of the video is misleading and whole video sends a confusing message. Ms Kernisan did not give evidence for any real risks od taking "too much" vitamin D for anybody, seniors in particular. As she correctly said in the beginning of the video - corelation is not causation and then in the end mentioned "increased risk of falls" for those who one study found to be "taking to much vitamin D" although there is no clear mechanisam showing vitamin D casued increased risk of falls. I suggest to ms Kernisan and anybody else intetested to read "The Role of Vitamin D in Health and Disease: A Narrative Review on the Mechanisms Linking Vitamin D with Disease and the Effects of Supplementation" (doi: 10.1007/s40265-023-01875-8). And also to learn that D3 and D2 are not equall, in fact supplementation with D2 has been shown to have negative effects.