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@nikjovicic10 ай бұрын
One thing I do not understand. There is passive and active intake which translate to: either take 1000micrograms once a week or 20 times less (50mcrg) once a day or 500 times less (2mcrg) at every meal. How does that mechanism work? Do we have some receptors that become saturated for active intake ? How often do those receptors (or whatever mechanism) can get saturated? Lets say someone is deficient and wants to improve and fill up the liver reserves as fast as possible with oral supplementation how many times per day could B12 be supplemented for fastest results? Thanks
@bonniepoole109510 ай бұрын
I'm so glad that Dr. Greger addressed the dose of B12. I was taking 1000 but then thought it might be too much so I cut dowm to 500. I'm 72 years old, so back to 1000!! Thanks!
@lizhall296110 ай бұрын
The best is to have your B12 and MMA measure annually because excessive B12 has adverse effects and as we get older we may not absorb it well.
@Legitimate12310 ай бұрын
@@lizhall2961 Source for excessive b12 having adverse effects? In the video he stated that since it's water soluble, any excess just leaves the body in urine like vitamin C.
@Vscustomprinting10 ай бұрын
Hes a shill fpr the supplement industry.. you should be eating fermented foods to help you extend your life and prevent disease as you become an older adult.. B12 supplements often do nothing and are not regulated by the fda.
@Vscustomprinting10 ай бұрын
@@Legitimate123stop acting like you are the nutrition science expert... You are trying to defend a supplement industry that is not regulated! Do your own research and you will see that b12 supplementation can feed unwanted microbes, encourage acne, and may contribute to an early death... DIETARY SUPPLEMENTS ARE NOT REGULATED. dr gregor has been wrong about fermented foods for a long time, He doesnt seem to understand that fermented foods are a source of b12, he doesnt talk about b12 in mushrooms, in nori, or in plant based sources... He is behind the times amd everything he says simply supports unfounded dietary supplement industry claims! If you wont do the homework for yourself, i will share sources with you here soon (ive got some stuff to do before i can sit around and educate gregor worshipers). Gregor is not board certified amd is just a salesman.. look at his credentials and who funded nutrition facts, from which he pulls a salary now! Nutrition facts is a portal for other doctors to sell supplements to their patients... Its about money at the end of the day for these people.
@cicciomattese10 ай бұрын
@@Legitimate123 It can increase cancers. Many studies show.....
@andanssas10 ай бұрын
9:16 I had no idea about the *potential harmful B12 alteration* when mixed with food, vitamin or mineral supplements. This means AG1 is doing it wrong! Thank you for this precious fact gem 🙏
@Vscustomprinting10 ай бұрын
Gregor is a mid tier nutrition researcher who has been wrong about fermented foods and other sustainable lifestyle practices. He shills for the b12 industry, which mostly comes from china and 85 percent of which is used to make the animal product industry viable.
@lint839110 ай бұрын
My take-away is to chew my B12 tablets. Something I didn't know, even though I've been following Dr Greger for years.
@Vscustomprinting10 ай бұрын
No, stop listening to gregor on this topic, he is a shill for the b12 industry.. see my comment for more info
@AUSerCali10 ай бұрын
This is incredible. Could you please make a video for optimal Vitamin D3 and Omegas too? Thank you Dr. Greger. You're a godsend!
@Vscustomprinting10 ай бұрын
No he is not, he is an shill for the supplement industry. Hes a mid tier nutrition researcher. Hes barely a doctor and is mostly a salesman. Hes just getting rich pff of telling people to take pills (that arent even regulated!!!!!)
@shellym7910 ай бұрын
Meat eaters please get your levels checked if you are having any symptoms of anemia no matter your age. I was deficient when I was eating meat at least twice a day, taking a multivitamin and eating fortified cereals often. I was 28 when diagnosed but I had been deficient for a very long time and had no idea. I was so tired. I couldn't breath going up a flight of stairs. I was told I was depressed given antipsychotics and told to exercise more. I couldn't exercise more because I could not breathe. Anyway I also had cracks in the corners of my lips, spooning nails, and bright pink blood if I was cut or on my period. 3 days of taking supplements and I could not believe the difference. Please please listen to your body and get help. If your doctor ignores you get a new one. 💚
@VeganChiefWarrior10 ай бұрын
Strange to think you would have died young living off the land in nature back in the day, you aren't supposed to be alive but science and supplements saved you haha lucky you were born in the age of b12 supplements as they've only been around for 100 years max.. you lucky lil feeb 😂
@Vscustomprinting10 ай бұрын
No, stop listening to gregor on this topic, he is a shill for the b12 industry.. see my comment for more info
@ShandyLov8 ай бұрын
Pls dear What type of supplement you take
@renato38 ай бұрын
Yeah, as asked already, what supplement did you take. B12 , which version.
@raymeb122910 ай бұрын
I was taking the injections because I was very low in B12. I also have stage 2 chronic kidney disease. Since I stopped the injections, I have noticed a difference. Now I know that I don't need the injections and can just buy the B12 best for me
@JuliaJulia00710 ай бұрын
Age 63. Had B12 checked 3mos ago. Taking 1200mcg cyno per day. No deficiency at the start. All is well 😊 I will, however, chew them from now on. Thx Dr G
@kovy68910 ай бұрын
I take the methyl version.
@binathere257410 ай бұрын
Did you have a serum B12 test or an Active B12 test? A serum test is not accurate and B12 tablets will skew that test.
@Vscustomprinting10 ай бұрын
No, stop listening to gregor on this topic, he is a shill for the b12 industry.. see my comment for more info
@cicciomattese10 ай бұрын
can increase cancer
@0000asdfasdf000010 ай бұрын
Yes thank you for this video!!!! Dr. Gregor we appreciate your work and it is help educating so many of us who are not in the medical field, but from a scientific and intellectual background and require proper data, evidence, validation, testing, accuracy, precision and clear information. Thank you.
@amyb955610 ай бұрын
Thank you so much. You answered the questions I have had for a while with B12. I appreciate all you do.
@Vscustomprinting10 ай бұрын
No, stop listening to gregor on this topic, he is a shill for the b12 industry.. see my comment for more info
@twelveofthem10 ай бұрын
It's my understanding that methyl is better because when you consume cyano, your liver has to methylize the compound and therefore it eliminates that step and absorbs quicker, thoughts?
@kovy6896 ай бұрын
Good point
@gabiangregoric28933 ай бұрын
@@twelveofthem yeah i really dont know what source of info to trust about that
@larrymaloney87710 ай бұрын
Clear as mud. Lots of important information, but we keep kicking the can down the road. After all this talk about B-12 over the decades, we still need a comprehensive set of rules to follow. I take one 5,000-unit capsule each Monday. I used to take one each day until my doctor said I had many years' worth stored in my liver. Please, someone tell me, must I take a daily dose? Or does taking the larger amount and storing it achieve similar beneficial results?
@leibatt210 ай бұрын
The video says younger adults can take 1k twice per week. Older folks (65+) should take 1k per day.
@larrymaloney87710 ай бұрын
@@leibatt2, that's my understanding, too. My inquiry is into the merits of taking one big capsule per week - since the B-12 is stored in the liver, can the body utilize the stored B-12 as beneficially as the daily dose.
@lindarichmond11977 ай бұрын
Some vitamins including B vites are water soluble. Excess unneeded B vites are released into urine. Search online. This is not a controversial topic. Stored in liver for immediate use. medlineplus.gov/ency/article/002403.htm
@economicdevelopmentplannin87154 ай бұрын
our baby was a 'plant based, choline baby' in utero. Took steps unassisted by 9 months, and walking easily by 10 months. can ask for her own "bottle" and "milk" by 12 months. She's very social at the libraries.
@themogget880810 ай бұрын
Despite the detail on not just the chemical forms of B12 but also pill taking methods, its odd that liposomal formulations are not mentioned. Absorption and utilization is what matters, and particle size and structure can have as much effect on that as the choice of B12 compound. Liposomal formulations, including multivitamins, claim to transport these sensitive compounds safely to the gut, which bypasses the need for the chew-it-up method. I would love to see evidence on this, and also on liposomal vitamins in general which are claimed to be especially useful for B12 and Iron where efficacy is not just about dosage.
@binathere257410 ай бұрын
B12 is water soluable. It doesn't need fat to be absorbed.
@lemisi7910 ай бұрын
@dr. Greger: In what specific way is B12 in a multi vitamin suppl. harmful? The documentation says 'presence of cobalamin analogues', so what does that mean for my body? Thank you in advance.
@Vscustomprinting10 ай бұрын
No, stop listening to gregor on this topic, he is a shill for the b12 industry.. see my comment for more info
@harveyplantharvester15029 ай бұрын
Cobalt is a toxic element found in combination with arsenic. It's a lie that vegans need to supplement with synthetic garbage made in drug labs. Gregor also recommends getting flu shots. WTF
@paulmaxwell885110 ай бұрын
I've said this before on another Nutrition Facts video, but adopting one-size-fits-all policies is almost never a good idea. A minority of seniors have absorption issue due to pernicious anemia etc. and they need significant B12 supplementation. However, most senior are fine, and if they follow the '1000 mcg for all' recommendations they are overdosing. In 2024 we do not yet understand the long-term risks of such massive intakes. Remember that, up to age 65, only 4-5 mcg is considered adequate. Preliminary studies suggest that long-term overdosing of B12 raises the risk of lung cancer in men, and raises the risk of thrombotic events (blood clots and strokes) in both sexes. Have your blood levels checked before you try to 'fix' a problem that may not exist!
@cicciomattese10 ай бұрын
other studies conferm high dose increase cancers.....
@jgreen93618 ай бұрын
Exactly. Half a tablet twice a week could be the right dose for vegans who don’t supplement in any other way. (That is the personal preference of one vegan KZbinr) For some people, the yeast extract on their toast plus mushrooms as part of their regular diet may well be enough. Also B12 is stored in the body for 6 to 12 months, so I have never understood the obsession some people have for the rapid absorption version of B12.
@cicciomattese8 ай бұрын
@@jgreen9361 studies don't show benefit in take b12 supplements in truth and who has lowest value (and so deficiency) tend live longer. In healthy subject b12 is a bit reasorbed in liver/bile
@cicciomattese8 ай бұрын
@@jgreen9361 in truth studies don't show benefit in take b12 supplements in people with very low values
@robman20954 ай бұрын
@@cicciomattese B12 and folic acid decreased my homocysteine levels substantially to desired low levels but I don’t know which was more effective. Since vegans tend to have highest homocysteine levels this seemed like a desirable result
@annaeklund-cheong441410 ай бұрын
I'd like more information on how several B vitamins affect cancer rates; thank you. I think there's a mixed bag out there of studies showing either reduced risk for some cancers but greater risk for others with Vit B supplementation . . . would love some clarification on where the science stands today! thx
@marcosdamota79269 ай бұрын
Hi Dr. Greger, cyanocobalamin is cheaper and more effective, but Dr. Lair Ribeiro says to take methiocobalamin because there are people who have a genetic polyformism that cannot transform cyanocobalamin into methio or hydroxocobalamin (only with genetic tests can we determine who has this condition)... cyan, it comes from cyanide... does that make sense?
@renato38 ай бұрын
You answered your own question.
@loredoezema35106 ай бұрын
cyanocobalamin is cheaper because it is synthetic.
@giannaarikoglu583810 ай бұрын
Hello Dr Greger, could you make a video on the different pros and cons of taking separate B12 vs a high dose B-complex? I tend to get B12 deficient but also folate deficient and am wondering what is better overall. Thank you
@Vscustomprinting10 ай бұрын
No, stop listening to gregor on this topic, he is a shill for the b12 industry.. see my comment for more info
@GirlJustDIY10 ай бұрын
Please discuss the age related decrease of the stomach acid required to fully absorb B12. This alone causes many elderly to become deficient. Sublingual tablets or shots may be required. ALSO, I disagree with any benefit to children on plant based diets. I have a family member raising their children vegan and I'm seeing weight issues developing because they eat a lot of processed foods, both the parents and the children.
@Vscustomprinting10 ай бұрын
No, stop listening to gregor on this topic, he is a shill for the b12 industry.. see my comment for more info
@Vscustomprinting10 ай бұрын
Thats a conflated issue.. eating prcoessed foods is not a sustainable lifestyle choice
@Dusty587010 ай бұрын
Whole foods are best. Processed foods are not healthy because they are full of oil, salt and sugar.
@lisaashton11245 ай бұрын
Take it as absorbed under your tongue so you don't have to worry about stomach acid at all it goes right into the bloodstream sublingually
@cinuk8 ай бұрын
Dr., I’ve been vegan for 14 years and I’m 47. My B12 has always been, since then, less than 300, but the last Acid Metilmalonic test was 0.11 (deficiência above 0.50). My folic acid is nearly 700. I feel great, I don’t have any health issues, never headaches, and I have lots of energy. I do take a low multivitamin supplement once a week, and I eat nutritional yeast with b12 every day. Giving the information above, should I increase my b12 supplements even I feel good?
@saraa455910 ай бұрын
Great information and insight. Those of us with genetically induced methylation issues ( MTHFR being just one of them), the methylated form is a must!
@VeganChiefWarrior10 ай бұрын
He said methylated forms aren't stable, I'm sure he would have mentioned methylation issues if it was a thing, try sublingual
@claudinestone615210 ай бұрын
He seems very ignorant on how harmful this is for those with MTHFR gene mutation. Im actually shocked that he doesnt mention this as this is very harmful to MANY.
@Dusty587010 ай бұрын
How do we know for sure? What does "the science" say?
@jonnenne10 ай бұрын
2/3 of people have that mutation so its not that relevant. Don't make problems where they ain't
@claudinestone615210 ай бұрын
How is it not relevant when a person is unable then to absorb the B12, has high blood levels since the body doesnt absorb it giving the person a false sense of security while having neurological problems as you become very deficient and also then high risk for cancer, etc?
@dollarbill89764 ай бұрын
The set amount of vitamins in your blood are different depending on country, state, city ,age , and doctor. I can not find any doctors agree on how much or how little a person should have
@mikemaldanado601510 ай бұрын
Thanks dr greger for your continued emphasis on the importance of this. I now take this very seriously. Does anyone else break out and get pimples when taking b12? i take 2000mg once a week as a chewable. I've never had a problem with acne in my life. am i taking too much? thanks in advance for any info.
@Brian-gk1cd10 ай бұрын
I also get pimples easily. There’s not much you can do other than lower the dose (and therefore increase the frequency). You could also try whatever general recommendations exist for acne such as a benzoyl peroxide face wash or a weak salicylic acid lotion.
@binathere257410 ай бұрын
This I believe can settle down. It's just one of those things. This or your life. You choose.
@cicciomattese10 ай бұрын
yes, it too. It can increase cancer
@cicciomattese10 ай бұрын
@@stefanozebralight518 too b vitamins can increase cancers
@Rym_Hosni3 ай бұрын
Shoud WE take this dose everyday?
@nazokashii10 ай бұрын
So nice to have everything summarised :) thank you for sharing
@darkangelprincess10110 ай бұрын
This video reminded me to take my B12
@julianvega267710 ай бұрын
Are gummies a good method?
@485093715 күн бұрын
Confusing. Which do you recommend? You recommend 2000 mcg 1x a week, or 50 mcg 1x a day, or 4.5 mcg 3x a day. I'm guessing that's for age >11. And 1000 mcg a day for age >65. It was hard to find this. What can it be mixed with? I have been cooking lentils and vegetables. After I turn heat off, I add b12 and kelp powder. I calculate the kelp dose. It's 1/8 tsp for an 8 day meal.
@dragonryderslairАй бұрын
I am a ICU RN of over 30 years just retiring I have been instructed for my entire career from Nutrtionists, Biologists, APRN that supplemental B-12 taken By mouth was destroyed in the stomach and therefore NOT benificial AND the reason that people with B12 deficiency require injections monthly to improve B12 levels Can you clarify these
@AccordionLadyDi10 ай бұрын
Thank You Dr. Greger so much for this video. In the past recommendations were always lower than 1000 mcg. I switched to 1000 mcg 1 year ago and finally my level is going up: 503. Thanks for keeping up with the new information out there. I'm so grateful for what you do.
@MonkeyPlantain6 ай бұрын
I'll confess I am somewhat confused by the recommended dosages. 50 mcg a day doesn't add up to 2000 mcg a week, but to 350 mcg a week. Why is the weekly dosage so darn high?
@Legitimate12310 ай бұрын
Very helpful review. :)
@Vscustomprinting10 ай бұрын
No, stop listening to gregor on this topic, he is a shill for the b12 industry.. see my comment for more info
@willmous364610 ай бұрын
After watching your B12 videos, I am as confused as ever about my daily dose of B12. I was on 2500 micrograms a week as suggested, but now you're saying 1000 micrograms a day. very confusing. Sorry.
@Dusty587010 ай бұрын
Dr. Greger uses the most current scientific studies.
@ankhenaten23 ай бұрын
Dr Greger is the best on the planet ❤❤
@loriclerkson295210 ай бұрын
If someone is over 65 and needs a 1000 units a day but their supplement is 2500 units could they just take 3 tablets a week and have the same absorption?
@loriclerkson295210 ай бұрын
@@stefanozebralight518 got it. Thanks for the reply 🥰
@aalyahmarks27174 ай бұрын
@@stefanozebralight518
@andanssas10 ай бұрын
5:37 I heard or read somewhere a while ago that over dosage, besides being discharged in urine, could affect acne production, is this true? Thank you for all the detailed information on dosages 🙏
@dominicmutzhas600210 ай бұрын
For injections, yes! But with oral the amplitude in the blood seems to not be high enough according to Dr greger
@VeganChiefWarrior10 ай бұрын
Derrick from Stinnett nutrition has this problem
@mikemaldanado601510 ай бұрын
@@dominicmutzhas6002 i also have this problem and take 2000mg chewables once a week. i have no history of acne?
@Brian-gk1cd10 ай бұрын
It is true. I (and many people in the vegan forums on Reddit) got acne from 2k once a week. Most people won’t get it, so it just depends if you’re susceptible.
@binathere257410 ай бұрын
You cannot overdose on b12. Your bodies will take what it needs and pass the rest. Yes b12 can stimulate acne problems no matter what the dose.
@stephaddiction10 ай бұрын
I worry about breaking out with b12, how do I know what to do 😢 I'm worried
@VeganChiefWarrior10 ай бұрын
Try taking smaller doses more often, like 200mcg a day should be good instead of 2000 a week, dr McDougal says it takes years to become b12 deficient, I don't get dr gregers logic on b12.. like when in nature did we ever get 1000mcg a day from water or eating meat lol
@stephaddiction10 ай бұрын
Lolol
@Brian-gk1cd10 ай бұрын
We probably never did get 1000mcg a day, but people rarely lived above 65 back then either. Probably back then, people had 5+ years worth stored up at 65, and so they could safely make it to their 70s at least, and if not all older people have problems with absorption, so if they didn’t, then they’d be just fine still, but those that did have impaired absorption would’ve struggled as they reached their 80s, at which point they’re probably already dead from something else
@VeganChiefWarrior10 ай бұрын
@@Brian-gk1cd or maybe we just simply don't need that much b12 because it stores for years and dr greger is trippin.. he acts like you wake up the next day and all of your b12 is just gone haha
@CCelia195310 ай бұрын
Absolute nón sense. I'm 70. Was B12 deficient for decades, and had to get shots very regularly. Since I'm Carnivore my B12 is in very high range. Eat red meat people.
@Vscustomprinting10 ай бұрын
You dont know what you are talking about.. I have sources that explain why b12 is higher in meat eaters and it has to do with viral load amd isnt a good thing. Stop abusing animals to fuel poor nutrition
@Dusty587010 ай бұрын
The scientific studies show that red meat causes colon cancer. Look it up. Protect yourself. Cancer is usually very slow growing so eating red meat, or any meat years and years ago can cause colon cancer or any type of cancer 5, 10, 15 or 20 years later. See the video "What The Health".
@jasonwilcox66378 ай бұрын
I saw him on the 7th day adventist channel giving a lecture, very good.❤
@samiryan21410 ай бұрын
What about B complex? bad as a multivitamin regarding to b12 absorption?
@josephmgomez392110 ай бұрын
B complex is better
@edepillim10 ай бұрын
I have a hiatus hernia and have been on proton pump inhibitors for over ten years. I understand that the lack of stomach acid reduces or stops the intrinsic factor and therefore inhibits the absorption of B12. A recent blood test did show l was low on B12. What advice can you give please.
@Dolores-i5n10 ай бұрын
See you doctor asap! and insist on b12 injections in Britain b12 inj3ctions are given weeily if your unable to absorb nutrients, fingers crossed for you. 😊
@Cherish..29 ай бұрын
Get the B 12 under the tongue is absorbed better
@lisaashton11245 ай бұрын
Yes I have a problem with stomach acid too because of GERD and have to take a ppi. So I take it sublingually under my tongue and let it dissolve which goes right into the bloodstream. It does not bypass the stomach at all
@elainewhite35910 ай бұрын
What should your b12 level be when tested if your over 65 years.Thanks for video doc
@binathere257410 ай бұрын
At least over 600. A serum test is inaccurate. You need an Active B12 test. I'm over 65 and been through it all.
@blumingwellness10 ай бұрын
Do you think it's possible that one's blood level of B12 could be very high, over the normal range, (via swallowed methylcobalamin supplementation) but the amount actually utilized by cells is somehow deficient? I'm wondering whether B12 analogues are counted in serum B12 levels though they're not efficacious. Is MMA a more reliable measure of whether active B12 is reaching the target tissues? thank you, Marian
@Jeffs6010 ай бұрын
Yes you are right that is why Vitamin B12 and things like Magnesium are not checked on a routine panel or general check up blood tests because they are not that accurate and give false hope to those people who think they can outsmart nature with their clever and tricky diets that were invented in the last 100 years.
@lindarichmond11977 ай бұрын
Search online. Your answer: medlineplus.gov/ency/article/002403.htm
@barbarasaunders216010 ай бұрын
If a B12 toothpaste could work, what about a topical B12 cream?
@aumnamashivaya410 ай бұрын
I take b12 capsules....( On plant based diet), so how do I boost the level? Chewing????😮
@Poorstargazer2310 ай бұрын
A liquid supplement or a pill that dissolves
@aumnamashivaya410 ай бұрын
@@Poorstargazer23 thanks, Dr greger said it is well established fact that oral pills are as effective as I / V but he emphasizes chewing...
@DoodleBugLisaАй бұрын
The cyanocobalamin triggers hypomania in me. I can only tolerate metholcgobalamin is the only type I can tolerate. I mean this is vital for me!
@ultramegasuper1110 ай бұрын
Wow🎉 What a great bunch of information 🍇 Thanks 😊
@liamtaylor495510 ай бұрын
I hear this can aggravate acne in the acne-prone, and I'm one of those.
@mikemaldanado601510 ай бұрын
i am not acne prone at all but am getting acne taking 2000mg per week.
@linaraepaksa10 ай бұрын
since the body deals with excess b12 so easily, i have just been taking 1000mcg now, so that I'll already have the habit well established when i get older.
@Jeffs6010 ай бұрын
The body does not deal well with excess anything whether it is B12, Vitamin D, wine, or saturated fat. You only need 2.4 mcg of B12 per day.
@linaraepaksa10 ай бұрын
@@Jeffs60 as he said in the video if you actually watched, it's water soluble and the body easily pees out excess b12. and elderly are recommended to take 1000mcg anyway, so that's what i do now until i die, whenever that is.
@Jeffs6010 ай бұрын
@@linaraepaksa There are people over the age of 100 that are walking and talking who never had access to any vitamins or supplements their whole life so please explain how that is scientifically possible. If you only need 2.4 mcg of B12 per day, why is more better and how does more end up wrecking your health and making the healthcare industry rich?
@RamasamyArumugam192710 ай бұрын
I have ordered 3 of your books
@Dolores-i5n10 ай бұрын
My gp prescribed me b12 ( 1mg a day) following a blood test which showed my b12 was BELOW the recommended guidelines at (147) and in the uk is considered normal if its between 158 and 600) so my level is considered to be only just under normal even though if my level was 599 I would still be within the normal range! I am 72yrs old and I have been taking this dosage of cyanocobalamin for the last eight weeks and eating all the food recommended as containing the highest levels of b12 daily yet not only have I yet to notice an improvement in the awful symptoms of the b12 deficienc❤y I am actually having the last eight weeks
@Dolores-i5n10 ай бұрын
More signs of low b12, the brainfog is bad the weakness and fatigue the red sore mouth and absolutely no energy on top of my jany pjysical illnesses is really getting me down! The gp is going to do another blood test in March which will be 3 months after prescribing the 1mg daily cyanocobalamin, Thanks to your video explaining the levels this medication can be taken I will try to speak to my gp and request a higher dose, I did initially request b12 injections but the gp told me that they can only prescribe the injections if the blood test shows positive meaning that it shows that you are not receiving the nutrients your body needs, my result was negative! Here in Britain on the NHS we have big issues getting gp appointments especially face to face! but all I can do is try.😮
@binathere257410 ай бұрын
You need injections
@Dusty587010 ай бұрын
Can anyone tell me why I get a headache when i take 1000 mcg methylated Vit B-12 supplement? So I can only take about 400 mcg without getting a headache.
@abhayagarwal50978 ай бұрын
I can't tell but been reading there are side effects some may experience ,also could be due to other health issues
@Cherish..29 ай бұрын
I use methylcobalamin sublingual....most metabolically active form
@loricohen6728 ай бұрын
What brand?
@lisaashton11245 ай бұрын
@@loricohen672 I take the same and it is by Nature's truth
@Dusty587010 ай бұрын
Thank you Dr. Greger.
@WiseMindNutrition10 ай бұрын
We hadn't heard of the toothpaste yet, that is an interesting suggestion!
@harveyplantharvester15029 ай бұрын
Interesting - more money for Merck, they hold a patent on B12 filed in 1945 and granted in 1951. Everything you've heard about B12 is a lie.
@mahatmaghandi428810 ай бұрын
Okey, i was taking 9 mcg a day which i guess is way too low. But taking 5 pulls a day seem like a lot.
@shanedemos871810 ай бұрын
What are the most common signs your dietary intake needs supplements - ie more - B - D - C - & ??? .. ect .. I have multiple medical issues - tumour - riddled with skin cancers - also have very bad pin's and needles in feet - legs and hands .. Prescribed morphine for pain relief ... I live in a very very small x1bed room apartment .. Trapped - cant move.... or exercise.. No where outside to sit in the sun ... a very heavy smoker !!! Unable to put on weight ... And just Can not 🚫 sleep !!! Dr Greger please 🙏🙏🙏 any advice would be greatly appreciated !!! Regards
@audreyfischer866210 ай бұрын
There was a LOT of content to learn and digest. Worth listening to it a couple times. My B12 levels got down low - - my fault. I got enlarged Red blood cells because of it - - if I understand it right.
@bm.63494 ай бұрын
@@audreyfischer8662 how did you go about fixing it?
@audreyfischer86624 ай бұрын
@@bm.6349 simply remembering to take a supplement B12. I take a lot of supplements. It was a big error for me not to notice that my B12 bottle was empty and needed to be replenished.
@markjones245310 ай бұрын
I take b12 complex 50 once at lunch then after dinner along with nutritional yeast at breakfast probably way to much my hair skin and nails have never looked so good lol and my urine is SUPER EXPENSIVE lol
@each1teach14110 ай бұрын
I’m just going
@each1teach14110 ай бұрын
I’m
@marcosdamota792610 ай бұрын
Portuguese subtitles, please...
@claudinestone615210 ай бұрын
Why does he never address those with MTHFR gene mutation who cannot methylate the cyano version. UGH. This is basic medical knowledge.
@meme-tf8ih10 ай бұрын
I see that article highlighted mentions cyanocobalamin form. Isn't that synthetic? Also, u can't really know if u r deficiency with a standard blood work, and sadly insurance companies won't paid for a better more efficiency test.
@binathere257410 ай бұрын
All forms are synthetic.
@Jeffs6010 ай бұрын
No doctor will check B12 or Vitamin D unless your basic CBC and CMP test results are not in proper range.
@KJSvitko10 ай бұрын
Heart disease is the number one killer of people today and cancer is number two. Being over weight is the number one factor leading to an early death. People who are over weight have higher risks for high blood pressure, heart disease, diabetes and cancer. Even children today have signs of artery disease. Fast foods and sugary drinks have long term consequences. There is an obesity epidemic today where over 60% of the population is overweight or obese. What is common today and "NORMAL" is not healthy. The average person today is not healthy and is taking medications. Heart attacks were once only common in people over 65. Today people in their 40 are having heart attacks. Add more plants and vegetables to your diet and less junk and overly processed foods
@mikemaldanado601510 ай бұрын
yes but what does this have to do wtih b12 :)
@Jeffs6010 ай бұрын
@@mikemaldanado6015 That is how people think when they are not getting the right nutrients. Too much 1) artificial trans fats, 2) Vitamin D pills and 3) B12 pills can cause heart disease and cancer and all 3 do not have any animal fat or cholesterol in it.
@myronalcock471610 ай бұрын
For once, the whole story, no extra googling needed. Thank you!
@johnbarnett2804Ай бұрын
I feel like this whole thing to aimed toward Pregnant women.
@sinningcieje10 ай бұрын
A how to/not to give birth book would be amazing.
@Aaron-wi4nq7 ай бұрын
Doesn't this guy think fluoride is good for us? Is there other forms of B12?
@binathere257410 ай бұрын
Oral B12 will NOT address a deficiency. You need injections.
@josephmgomez392110 ай бұрын
You're so wrong.
@binathere257410 ай бұрын
@@josephmgomez3921 oh no I'm not. I've been deficient for longer than I know. I was on a slow painful decline to death. I inject daily now. You infact, need to do some more research..
@binathere257410 ай бұрын
@@josephmgomez3921 oh no I'm not. You infact need to do some more research. There is a difference between deficient and insufficient.
@binathere257410 ай бұрын
@@josephmgomez3921 from someone who has been a vegetarian for over 40 years and has had a severe b12 deficiency crash and now injects daily, I am so correct.
@binathere257410 ай бұрын
@josephmgomez3921 from someone who has been a vegetarian for over 40 years and has had a severe b12 deficiency and crash and now injects daily, I am so correct.
@VeganChiefWarrior10 ай бұрын
We must have eaten a lot of meat every single day back in the day to get 1000mcg a day cause no water source on earth has that much b12
@Brian-gk1cd10 ай бұрын
It’s from bacteria…
@VeganChiefWarrior10 ай бұрын
@@Brian-gk1cd I know
@binathere257410 ай бұрын
No water source? B12 comes from healthy soil. People ate offal particularly liver where the b12 stores. Offal is not popular these days.
@VeganChiefWarrior10 ай бұрын
@@binathere2574 on Dr gregers website he says we used to get all the b12 we needed from natural water sources, he must be lying
@KerriEverlasting10 ай бұрын
1 of 3 vegans they tested it on? And we are supposed to think thats a study? Really? 🙄
@liamtaylor495510 ай бұрын
"1 of 3" refers to a percentage, not the sample size.
@Brian-gk1cd10 ай бұрын
Kerri, go back to school
@binathere257410 ай бұрын
@@Brian-gk1cddon't be rude.
@briansaanich262410 ай бұрын
One IN three, not one OF three. That is to say, 33.3 %.
@vigneshgvs9 ай бұрын
Too much description from documents not attractive eagerness to watch video. please show in more animated or just apt things in a shorter video.
@waterworthgardens10 ай бұрын
Plant based diets are the worst diets for humans.
@Jeffs6010 ай бұрын
Would you rather spend 8 hours a day having sick complaining patients breathing on you all day long or make a short video 2 times per week and make 15 times the salary of a doctor?
@Dusty587010 ай бұрын
Read the science. See the video "What the Health". Meat can easily cause cancer ( in time ). Protect yourself.
@Dusty587010 ай бұрын
Making videos can help thousands of people on a daily basis. @@Jeffs60
@Jeffs6010 ай бұрын
@@Dusty5870 In the last 4 million years no animal food has ever caused any health problem in any human or any other omnivore unless they: 1) consumed way too much of it 2) it was of defective or contaminated quality 3) the human or other omnivore was allergic to it.
@paulensor998410 ай бұрын
The "bookends of life" are an outdated way of living
@aroundandround10 ай бұрын
Title is an arcane concern only for folks with silly dietary restrictions.
@kirk391610 ай бұрын
Why not eat a proper humand diet (meat) and then you don't need the suppliments.
@Alysuis10 ай бұрын
Even people eating diets with meat and animal byproducts should be supplementing for b12. Furthermore, livestock needs to be fed b12 fortified animal feed. Which is why animal agriculture is the largest purchaser of b12 vitamin at 90%.
@kirk391610 ай бұрын
@@Alysuis so umm... how did humans survive before supplement manufacturers?
@Jeffs6010 ай бұрын
@@Alysuis But how do they treat the kids that have to mine in Congo to get that cobalt? Do you approve of that or just get natural B12 from wild caught sardines?
@Alysuis10 ай бұрын
@@kirk3916 B12 is naturally produced by bacteria found in nature. Animals, our selves included, got most of it by eating food contaminated with dirt and from untreated water. However, our food system is more sterile now a days so we need to add it to our food chain. It's pretty neat, you should look it up if you truly are interested.
@Alysuis10 ай бұрын
@@Jeffs60 You are not wrong! Again, 90% of the worlds B12 goes to animal feed. As such, don't you think we would need a lot less abusive mining if we cut out the intermediary?