AMA #15: Fluoride Benefits/Risks & Vagus Nerve Stimulation

Welcome to a preview of the 15th Ask Me Anything (AMA) episode, part of Huberman Lab Premium.
Huberman Lab Premium was launched for two main reasons. First, it was launched in order to raise support for the main Huberman Lab podcast - which will continue to come out every Monday at zero-cost. Second, it was launched as a means to raise funds for important scientific research. A significant portion of proceeds from the Huberman Lab Premium subscription will fund human research (not animal models) selected by Dr. Huberman, with a dollar-for-dollar match from the Tiny Foundation.
If you're an existing Premium member, you can log in to access the full episode at hubermanlab.supercast.com.
If you're not a member, you can join Huberman Lab Premium at www.hubermanlab.com/premium to enjoy exclusive content, including monthly Ask Me Anything (AMA) episodes, AMA transcripts, podcast episode transcripts, early access to live events and help advance human scientific research.
Resources
How to Optimize Your Water Quality & Intake for Health (Huberman Lab episode): www.hubermanlab.com/episode/h...
Optimize Your Water Quality and Intake for Health ( Neural Network newsletter): www.hubermanlab.com/newslette...
CDC Drinking Water: bit.ly/3OscFuK
Lighting the Brain (The New Yorker): bit.ly/48VhS6x
Timestamps
00:00:00 Introduction
00:01:46 Why Is Fluoride in Water and Is It Harmful?
00:26:44 Huberman Lab Premium
In the full AMA episode, we discuss:
- What Are the Effects of the Vagus Nerve on Calming the Body and the Brain?
Social & Website
Instagram: / hubermanlab
Threads: www.threads.net/@hubermanlab
Twitter: / hubermanlab
Facebook: / hubermanlab
TikTok: / hubermanlab
LinkedIn: / andrew-huberman
Website: www.hubermanlab.com
Newsletter: www.hubermanlab.com/newsletter
#HubermanLab #Science #AMA
Title Card Photo Credit: Mike Blabac - www.blabacphoto.com
The Huberman Lab podcast is for general informational purposes only and does not constitute the practice of medicine, nursing or other professional health care services, including the giving of medical advice, and no doctor/patient relationship is formed. The use of information on this podcast or materials linked from this podcast is at the user’s own risk. The content of this podcast is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Users should not disregard or delay in obtaining medical advice for any medical condition they may have and should seek the assistance of their health care professionals for any such conditions.

[@dm_podcast_takeways]

Summary: Andrew Huberman explains that the presence of fluoride in water is aimed at strengthening teeth and preventing cavities. He emphasizes that the impact of fluoride on health depends on its concentration and that, at certain levels, fluoride can be harmful and even considered a poison. Huberman discusses ongoing lawsuits in California and Buffalo related to fluoride in drinking water, reflecting divergent opinions on its safety. The rationale behind adding fluoride to water is to create stronger teeth, and dentists generally agree that fluoride enhances tooth strength. However, the bonds formed by fluoride differ from natural bonds in teeth. Huberman addresses concerns about fluoride levels, discussing potential harm to thyroid function and brain health at elevated concentrations. He emphasizes the importance of understanding fluoride levels in tap water and suggests filtering water if there are concerns. Huberman recounts a personal experience of ingesting fluoride as a child and getting sick, highlighting the substance's potential toxicity. He recommends assessing individual concerns, testing tap water fluoride levels, and deciding whether to filter water based on personal preferences and budget. Additionally, Huberman promises to delve deeper into oral health practices in a future episode, exploring natural methods for strengthening teeth and addressing cavities.

[@bryanutility9609]

Why doesn’t he look at foreign countries that don’t use it?

[@exponentialpotential9442]

Definitely its The Hormonal Health that is At Risk. Blessings 😊😊😊

[@pm820]

@@bryanutility9609good question

[@mamacarol108]

Thank you for this! And good to hear that he will look more into oral dental health, it's so hard to get good information and I really trust him. I used to use non-fluoride toothpaste and would have a cavity every time when I went for my cleaning.. now for the last few years I never do since starting the floride toothpaste.. but I wonder if there is a better alternative.

[@canowyrms]

​@@bryanutility9609this isn't the full episode. Anyway, what is there to talk about? Some places choose to use it, some don't; probably for the same reasons he outlines when he discusses that some municipalities in the US choose to use it and others choose not to.

[@JuliaRaeConnor]

I think exploring the history of fluoride, as well as outlining the different forms of fluoride would be really helpful in this conversation.

[@deekity101]

Yeah like the fact fluoride was used as an insecticide pre WWII. Then we employed 1,600 nazis in the US government and started poisoning the water supply shortly after. Have fun

[@cdenisco87]

Andrew, please address the differences between calcium fluoride and sodium fluoride when discussing the published research. I have read the scientific literature myself and in every case the study of benefits of fluoride are in reference to calcium fluoride. Sodium fluoride is always toxic, specifically neurotoxic. This is where the controversy and distrust of the government has come into play with regards to adding fluoride to water/dental products. A persons level of oral decay is a direct consequence of poor gut health and overall healthy habits, not whether or not they use sodium fluoride. I would really like to see you speak about the chemical properties of these two different fluorides and what a huge difference it makes in how we should interpret the science.

[@Truthseeker88888]

Yes, this distinction is never addressed. Similar to red meat studies claiming to be bad for the heart/circulation/cholesterol or whatever else is touted while NEVER talking about grass finished vs corn/soy finished and the fat profiles making a clear difference of beneficial or not.

[@jasbadsirron6424]

As soon as I saw him defending flouride, I did some research on him: Huberman is based on Hober, the Yiddish equivalent of the German Haber/Hafer, which means "oats". Huberman indicated an "oats seller" before it became a fixed, hereditary family name. Guberman is a Russian form of Huberman. He's a Jew in disguise. Don't be fooled. They build their cred using populism, then push the narrative into our minds.

[@wendyg8536]

Thank you

[@offensivearch]

There is probably a bidirectional link between oral health and glucose metabolism (seen in e.g. diabetes), another thing not often talked about.

[@ChristoScriven]

Very well made points

[@nickhatt1584]

There are two kinds of people when it comes to this topic. The ones who are okay with it being discussed and have wondered about this topic and the ones who think that everyone who questions it is stupid and that you shouldn’t even talk about it because they refuse to think critically and own their health.

[@DRourk]

This is true of most any topic. There are those who think, and those who abdicated their thinking to so called experts.

[@idaalavioon]

Also, why is it ever okay to put a halogen (with high oxidation properties) in our water?

[@DRourk]

@@idaalavioon Iodine would arguably be a good thing, in very small amounts, as it is an essential nutrient for humans. The goal however is poisoning humans, not improving their health.

[@botanicalbecca8443]

​@@DRourkMaybe not so ironically, iodine is also crucial to proper thyroid function/health...

[@TT-zl7ir]

The Fluoride Deception cites Freud's nephew Bernays for coming up with the strategy that opponents to fluoridating water can be ignored or ridiculed but never debated.

[@exponentialpotential9442]

Ah Professor Your Light is Fabulously Blinding😊😊😊 Blessings

[@TopHillsongWorshipPlaylist]

I was homeless, got into drugs, went into prisons, then i got to know Jesus, He changed my life.. Now i have a home, a wife, a lovely daughter and a new identity... A child of God.. Hallelujah....

[@1234z7]

I am thankful that so much good information is out there now for developing good mental physical health that wasn't available to so many for so long. I am learning I haven't ever done anything correctly. From basics like breathing walking talking, to the more complicated issues. I am a walking disaster of what not to do or be like. I have little hope for a future but am really glad there is hope and help is out there for others to have a future and maybe even a dream for themselves to achieve.

[@DK-dp3kk]

Another nice podcast. Minor correction: bacteria doesn’t release acid - they release succinate which activates inflammatory cytokines which breakdown alveolar bone

[@vale_004]

I love this topic, I’m a Dental Hygienist in NM, and People ask me this all the time… Can’t wait for the new podcast coming in oral health.. Thank you Dr.Huberman🦷😷😁🪥

[@spiritus.9]

Crazy how some people think fluoride was used by Hitler to keep the Jews in concentration camps docile or that it can calcify your pineal gland which is believed to be your third eye which essentially serves as a spiritual antenna cutting people off from God.

[@srdast]

As you become more popular there are growing skeptics about your podcast and viewers blindly 'trusting someone who seems to know everything about everything'. Just a small suggestion, at the start of your podcasts, explain your process and methodology for compiling the research needed to discuss each topic. In the same way you give a disclaimer about your podcast being distinct from your teaching role at Standford. We know you are not an expert in everything but you are covering an impressively wide spread of topics even when you do not have guests on. Do you have a team of people helping you do Lit Reviews? Do you rely on systematic reviews, how do you decide what you will focus on in each area? Is there any specific data you choose to leave out? Why should your audience believe that you have thoroughly exhausted all credible evidence on say, 'cold and flu prevention'? You are becoming one of the greatest science communicators of our time. And it's needed now more than ever, so hats off to you, but let's ensure people understand the limits of your methodology in evidence synthesis when deciding how they wish to apply your findings to their own lives. This will also help silence your critics who like to poke holes at the science you choose to feature (e.g., claiming it is cherry-picked or calling it pseudoscience, etc).

[@michelleh.7010]

THIS! I have been thinking this for months. If he DOES have a team doing lit reviews, post those links on the bottom of the screen or in the "more info" section below the video.

[@srdast]

@@michelleh.7010 And I just want to clarify, I LOVE THIS CHANNEL. Dr. Huberman is doing a great service to the public and to Science, but his methodology should be clear and transparent. I'm sick of watching 'experts' shoot down each other's peer-reviewed research or attack anyone who dares to make a recommendation on a subject as if the science will ever be 'final' on anything. COVID has taught us that the public is interested in science and research but their trust in it is at all-time lows and as an online community communicators like Dr. Huberman play a huge role in helping the public regain trust in science and its practitioners.

[@marstokrom1872]

I absolutely love Dr Hubermans work, and I couldn’t agree with you more!

[@wavee5879]

He lost ALL creditability with this lie. He is controlled opposition! Bought and paid for via his controllers.

[@jacqmichael9771]

Bruh...this is a YT video not a college course. You're not suppose to believe something 100% even if they seem legit. And most viewers doesn't need to know everything in one video. You can do your own research later.

[@pathologicaldoubt]

As a rule of them, it’s generally better not to add substances to public drinking water

[@BrotherJohn-cx7iw]

I agree! I think we should have the option to choose.

[@zxethaeoe]

Exactly! Otherwise why don't we put any other drugs in our water? Is it atually being dumped in the water for public health? Also, if fluoride is in tooth products and is for our teeth why should we also be ingesting it? Ingesting it against our will I might add.

[@cosmickinks]

Love his way of balancing out perspectives 🥰 Looking forward to all the oral hygiene vids!!

[@Beata-pm1mq]

What a great topic Andrew. As a dentist I am asked to answer this question very often.

[@JuanderBoyMusic]

It's mind blowing that Dr Huberman gives us all this information for free. I Listen to episodes 2 or 3 times taking notes and going over the notes later. It's a free lesson from the most qualified teacher we could ever get. Thank you!

[@jonesaleroy]

Definitely my #1 favorite!! Most informative channel out there. I made A lot of changes to my supplement regimens because of what I learned from this channel. And it's made a tremendous impact on my life. I figured out a treatment regiment for my ADHD and depression. If there were more channels like this, the world would be a lot better place.

[@plectro3332]

Would you share this treatment regiment?

[@robertessex6833]

Misses the point. The point is which type of fluoride is being put in the water. Calcium fluoride = benefit or sodium fluoride = neurotoxin or hydrogen fluoride (highly toxic by product of fertilizer production). As hydrogen fluoride ( fluorosilicic acid ) is a waste product and difficult to clean up and there is such a large amt of it being produced - dispersing into drinking water is an inexpensive method of getting rid of it. The discussion needs to be what kind of fluoride is going into the water and why do most countries (with declining cavity rates have banned it)

[@Xxeon10xX]

Please do an episode on skin health, thank you for your amazing work and effort Dr. Huberman.

[@alexgordon951]

Stay away from seed oils and get plenty of sun and saturated fat

[@ataturu]

Since I removed all sources of fluoride and focused mainly on gut health 10 years ago I feel overall better and never had any cavities. Never saw the need of fluoride. Also sodium fluoride neurotoxic, any amount of it. If you need it, use calcium fluoride.

[@user-ms4jz8sr5q]

Tahnks sir A.H. for informations. I am from Uzbekistan and I really admire your videos

[@gangakarapenan3365]

I love your stories, master story teller👍

[@memastarful]

My mom worked in dentistry for many years. She is a strong advocate against fluoride.

[@13vo7]

Yet another banger from Professor Huberman. Keep up the awesome work!

[@TheHubermanChronicles]

Informative podcast again, thank you.

[@martynawlodarczyk9828]

Three reasons why I believe your audience would benefit from an episode on OCD and ERP: 1️⃣ OCD is much misunderstood as a disorder, which keeps people from getting help. If you were to speak about the disorder on Huberman Lab, people with OCD symptoms would be better equipped to understand their own brains and seek specialised therapy 2️⃣ ERP is a type of therapy based on encouragement, facing your fears, becoming a stronger & more disciplined personality, and on virtuosity in noticing, naming, and feeling emotions. While most often used as treatment for OCD symptoms, most of the population would improve their mental health & gain courage if they knew of ERP and practiced it 3️⃣ finally, OCD awareness within the society and ERP therapy availability are undergoing a major shift due to the services of NOCD, an online platform with ERP-trained therapists and an excellent clinical research team led by Dr Patrick McGrath Thank you in advance for considering this as a topic of one of your future episodes

[@solaristhesun]

In Germany we don't have fluoride in the drinking water. I think that's good think. You can always use tooth paste with fluoride if you want it. Most dentists I went also recommend to use a high fluoride tooth paste, like elmex gelee, once per week. But on the other hand you'll find some "alternative dentists" on the internet who will tell you it is poison...

[@marshad.9149]

Love your dry sense of humor 😊

[@_gentoo_3948]

I would love to hear your thoughts and findings about Emulsifiers in foods, such as Carrageenan, Xanthan Gum, and Lecithin. I see these ingredients in everything and hear mixed information about them. Love the podcast ❤

[@purepotentialityNow]

In Safe Hands...Our Hormones Thank You Light.. Blessings Professor 😊😊😊

[@this.is.natasha]

Dr. Huberman, I appreciate you speaking on different body sizes/weight and how much you are taking in and referencing how different drugs or meds are by weight that not everyone will get the same dosage. I would love for you to speak on this in regards to vaccines. Why are vaccines the same for all who get them, why are multiple vaccines not tested for safety when given together. Thank you!

[@surfershaper]

Waiting patiently on the dental care podcast. Need expert information on this subject, as there are conflicting suggestions about how to care for teeth. Thanks Professor 👍🏻👊🏻💪🏻

[@detelinastoykova-asenov8595]

I definitely agree that some fluoride is necessary for teeth health; but the way it is given to the population, literary feeding us with it, the many uncertainties of how much, where, how much per body weight is just simply very vague. Also, fluoride is not only in tap water, but in everything made with it- most commercial food products use some amount of water and most drinks, that are not made with purified water. So that further muddles the question of how much we consume. I believe that should be left to dentists to decide and prescribe the exact amount of fluoride in series of treatments in critical times or according to the personal health. Not to run on unknown fluoride amounts every day of our lives and to play the guessing game when it comes to such important things as our oral, physical and mental health. Another thing- when I used fluoride tooth pastes my mouth was constantly peeling off inside, very uncomfortable and annoying thing, I didn’t know what was causing it. After trying different things I discovered I was allergic to fluoride! Imagine the damage that this substance did in my body, as I was drinking tap water without concerns. So I do have a thyroid condition now. And even though I use now fluoride free tooth paste and purify my water, that issue remains. Who knows how many people out there have the same and suffer unknowingly..

[@offensivearch]

I've never understood the rationale behind fluoride additives in the drinking water for dental health, even if it does have some positive impact on final dental health outcomes (debatable). I fundamentally don't understand taking risks with the brain and nervous system just to have slightly better teeth.

[@BunnyUsagi]

I was switching to completely fluoride-free toothpaste and I have no problems. In Europe and Japan it would be scandal if they put fluoride into the water. The Americans are really interesting😮😮😮

[@jonl7855]

Yes, us Americans are all about freedom. Including the freedom for powerful corporations and government bodies or anyone with power to get around the laws and negatively affect the public in order to advance their own interests.

[@damadarago3855]

They put the fluoride also in some European countries.

[@BunnyUsagi]

Yes, but not per county,per water supply company. Currently only under 14 million people (approximately 2%) in Europe receive artificially-fluoridated water. Those people are in the UK (5,797,000), Republic of Ireland (4,780,000), Spain (4,250,000), and Serbia (300,000). It might be hypothesized that some of these companies are receiving money for „using“ fluoride…

[@JeremiahDavid-ll5qo]

flouride is an essintial minerial

[@luisasensei]

@@JeremiahDavid-ll5qo No, it is not. Please do your research. If so, for what would it be essential?

[@chris.strandburg]

As a dentist, this was an excellent overview of fluoride. Thanks Dr. Huberman!

[@talavs-jekabsriekstins578]

But as a citizen do you agree that goverment has the power to forcefully medicate the population within the water supply?

[@chris.strandburg]

Ya it's a tough issue. I believe in personal autonomy and it can seem like an over reach to medicate the water. What proponents of water fluoridation will argue is that since they started fluoridating water in the 1950s, they immediately saw a decrease in cavities. Communities with fluoridated water have lower cavity rates than those without. They will point out, for example, that children who otherwise do not get good oral care, benefit greatly. I think I could write an essay arguing both directions. One thing I believe for sure, is that there are ways to innovate in our society so that water fluoridation is no longer necessary. Whether it's technology, cures, etc. When looking at a solution of the past, I prefer to say "that was ok for back then, but we can keep doing better." If there are potential risks to overall health due to water fluoridation, as many state, then let's look for ways to do better.@@talavs-jekabsriekstins578

[@undeadvampire2969]

I am eagerly waiting to see if you cover about skin health,cancer, tools and supplements for best skin care routine.

[@leon7e]

What was fluoride a byproduct of? Although fluoride is used industrially in a fluorine compound, the manufacture of ceramics, pesticides, aerosol propellants, refrigerants, glassware, and Teflon cookware, it is a generally unwanted byproduct of aluminium, fertilizer, and iron ore manufacture.

[@Kamil_M_87]

Correct and on point!👏🏻👏🏻👏🏻

[@patriciasalen8434]

Requests for future episodes: 1. Nutrition in food VS cooking methods. (Topics such Raw food-diet, slow cooking, and microwaving VS oven-heating) 2. More on women's hormonal health. Specifically fasting for women

[@anne-marieh6128]

I love that you even took this topic up. Barbed indeed. I wonder if there might be some attempts to influence outcomes by having a juxta position lawsuit taking place on the other side of the country. which lawsuit was filled first? How soon there after was the 2nd?

[@peacelily64]

Where do speak about calming the vagus nerve?

[@FroggerMan2024]

Was wondering this too? Dosent even mention it

[@patriciaojeraransaez2893]

excited for the oral health episode! thought it would also be really interesting if you make an episode about languages and the science behind learning new ones & all about that! x

[@lilbrit1811]

I’d love to have you do an episode or bring someone on (like dr gabor maté) regarding body and unprocessed emotions/trauma causing chronic pain, autoimmune issues, reactivating EBV.

[@cinderchey]

I’m so excited for the oral health episode!!!!! 🎉

[@navidnajafi625]

Hello Doctor , thank you for your amazing videos . Can you have a guest to talk about skin, acne and skin routine and hygiene ?

[@craving4health]

Thank you for addressing this topic, a point of debate since being mentioned in the film Dr. Strangelove. Excessive fluoride disrupts iodine absorption, potentially leading to hypothyroidism. Excess dietary iodine is also associated with hypothyroidism, thyroid nodules, and even thyroid cancer. Maybe governments should be more cautious about implications of fortification, especially when the full extent of the impact is unknown.

[@OemarMalawat-mu4sc]

Thank you Prof, looking forward for oral health ❤

[@beingavinav]

Some information on 'Oil-Pulling' & it's benefits on oral health would be great when covering the Oral Health episode.

[@jim_andrianakos]

I remember seeing my dentist after oil pulling for two weeks and they were amazed. I am a believer. All should be learning about this.

[@hackeralen8354]

I wanna know more about oil pulling I was doing it for a while until I moved to herbal toothpaste without fluoride

[@fodilamra]

I can’t wait to listen

[@HecKaTorN]

first off - thanks for the amazing content would you consider at some point doing a video of interpreting blood test results and some of the possible correlations? for example - raised lipid profile x5 times the normal values without actual liver damage but because of strenuous physical activity. alot active ppl i know including myself are struggling to understand more on this while the general practitioners in my country seem obliviant on the subject.

[@kman8271]

We use absolutely no fluoride ever. No cavities and no issues whatsoever. Our teeth are remineralizing using Wellnesse toothpaste only.

[@Jonathan-yu9ui]

good for you i guess, you guys at least practice good dental hygeine

[@herbbjerry2406]

The Fluoride deception by Christopher Bryson is a must read.

[@bethd6169]

Thank you for this AMA! Have you considered doing an episode on the science and research around hypocrisy, specifically addressing moral licensing?

[@leannekendall154]

Hi Andrew. I just started listening to your podcasts and find them extremely informative and digestible. I would love if you did an episode on the social brain. ie the Social Brain Hypothesis, neocortex volume (and the importance of social development in the period between weaning and puberty), social circle sizes and tendencies in humans in relation to other primates or mammals, and perhaps talk about the research done on how social media has influenced these tendencies (do humans have less of a need for people in their physical life due to connections made in their digital one? The work-from-home phenomenon seems to suggest less of a need for social relationships in the physical world...). Just some initial thoughts. Not sure if you take requests but I find this topic extremely interesting and I would love if you covered it! Thanks!!

[@time2maked0hnutz54]

My Top 5 Favorite Channel bc Dr. H. was /is a Skate Punk Rad individual in my Era but Mostly I've Learned SoOo Much from him. Thank You for Teaching my Mere Mortal Self💯💎🙏🏽🤙🏽

[@gratefulprepsnj]

Good or bad, the state has no right to add drugs and pharmaceuticals to drinking water.

[@SuperBlargle]

True and real

[@RebirthofRepentence]

Not without running it past us first

[@differenceofexistence]

Fair enough.

[@differenceofexistence]

The water quality here (in CA) is repulsive.

[@mariannatomazou1161]

Hello Andrew, thank you so much for your content. My request is unrelated to this topic but is there any way you could do a podcast on dogs’ physical and mental health , and maybe the correlation between dog happiness (feeling loved and cared for, not feeling jealous of other pets) with appearance of health issues such as tumors etc ? Thank you very much.

[@grantsincock4161]

I feel like one key point was raised but then never addressed. What is the dose at which fluoride is a poison and how much tap water would you have to drink at CDC recommended levels to be poisoned?

[@anthonychaffeemd]

Or, just don't eat sugar and then you don't need to run the risk with fluoride one way or the other.

[@jessicah2345]

Bingo...

[@user-ol2vs7bj2l]

Thx Dr.andrew huberman for providing this kind of information, I wish u add an Arabic caption so those who don't know English can benefit from u content

[@jackiestrzelecki]

Can’t wait to hear your oral health Podcast Dr. Hube!

[@jt.b.7419]

What about the impact of Fluoride on Nitric Oxide production in our Saliva? I recently listed to a podcast where the many downsides of low nitric oxide in our body can lead to many halth issues and that fluoride can actually hampen our nitric oxide since not all of the nitric oxide can be absorbed by our gut and is therefore cycled back through our saliva for further absorption, where fluoride can actually destroy the good bacteria that is in our saliva, much like our good gut bacteria can also be destroyed through fertilizers, etc.

[@Dankapotamus918]

Mouth wash kills the bacteria that help with N02 production. Basically mouth wash is bad for the heart.

[@kristian.n.a91]

The greatest when it comes to science and

[@smilebot484]

looking forward to the oral health episode. i was wondering about the difference between consuming flouride in water vs applying it to the teeth directly, also wondering about natural flouride found in tea for example

[@marcibunn]

❤thank u!

[@gruniach9681]

❤thanks

[@francgo]

Daddy Huberman looking sharp 😎

[@leslifralia]

Dr. Huberman-2 things. 1. You’re my 11th favorite human. 2. The Superior Colliculus. I’d love to know if there is a way to isolate and focus this parallel pathway to our visual processing. And could this help us see the world overall in a different way?

[@Indianabanana11]

You are hilarious. Always a joy. The fluoride deception is a fascinating book.

[@thomasphifer3054]

Why didn’t Huberman answer these simple questions? 1. At what concentration is fluoride dangerous? 2. For an example city (e.g.) NYC, how much water would the avg person have to drink to get fluoride poisoning/ill effects? Without these answers, the podcast is just saying “fluoride can be dangerous at high enough concentration” which describes literally anything

[@jo-annebaker4666]

I am really interested in the comment you made about fluoride effecting the thyroid, as my thyroid has been problematic and on eltroxine, my parents were obsessed with all us kids having fluid as it was not in the drinking water at the time & took tablets. I know so many women with thyroid issues can you discuss more about this ?

[@horsepaste817]

Many in alternative health circles strongly advocate for supplementing with Lugol's Iodine for thyroid issues. In the west most people are very low in iodine, they say.

[@Dankapotamus918]

Iodine and fluoride competes and fluoride wins. The more fluoride you intake the lower your iodine levels.

[@devonbarrus4704]

Andrew, how would you recommend getting my morning cortisol up without exposure to the sun. I generally wake up 1-2 hours before sunrise to begin my work. But I notice by the time I get home I have low energy to play with my kids.

[@javo9795]

Why does he avoid the fact that fluoride calcify the pineal gland?

[@CdnEnjoyLife]

Hi Andrew, I hope that you see this. Unless I misunderstood you, please reconsider making the Oral Health episode exclusive to premium members please. I work in the dental field and I believe that any education available to people of different socio-economic status, is essential. I hope that I've articulated myself clearly. Overall, thank you so much for your efforts in education, research and awareness. God bless!

[@kimberlyf4888]

You misunderstood him.

[@ReadingDave]

I forgot about those flouride tray thing.

[@inexp1]

Andrew is such a funny storyteller 😂 So good

[@user-vk7qv4uc2c]

A podcast about dental health would be awesome 😊

[@Frank_F]

What are the odds of doing a segment of the podcast on depersonalization?? I know there isn’t a lot of research but I’ve had it for 13 years and it’s unshakable. Thanks doc!!

[@davepenny1199]

Recently the gym I go to has relocated. I am noticing a significant change in work rate effects - feels harder and sweating soon and more! The gym has moved underground and relies predominantly on mechanical ventilation. I have started measuring the RH levels. (Relative humidity levels) HR levels around 70-80% (19 degrees) I am reading that water vapor can displace available oxygen in the air. I understand that the body's abilities to dump /regulate heat is increasingly effected/ compromised in high humidity levels. Have you done any talks related to exercising in high humidity conditions? Or might you consider doing one? I am going to add in "sauna training" as a means to help build heat tolerance. Can you, via present research, say what is the ideal level of RH levels to exercise (high intensity)? And what levels might be "unsafe"? Either or both, of accute exposure or prolonged exposure My personal context: Train consistently, 6 days per week from 30 minutes-1hr in high intensity based exercise. Many thanks in advance. Love love your conversations and have be pivotal in health choices I make. Awesome to have you and your work as a trusted resource!

[@norcalreina1307]

Where do we find the vagus nerve portion of this podcast? Is it only in the premium?

[@JenP2776]

I much prefer the nontoxic and better remineralizer, nanohydroxyapatite. Our teeth and bones are made of it and the nanoparticles allow it to remineralize even small holes and crevices. I use Boka nanohydroxyapatite toothpaste or one from Japan (Apaguard) where nanohydroxyapatite is used instead of fluoride. I also use mints and WaterPik tablets with nanohydroxyapatite from Weldental. There are several studies showing that it is more safe and effective than fluoride for remineralizing your teeth.

[@Ghizlanh]

تحياتي سيدي تعمدت ان اكتب تعليقي هذا باللغة العربية انا من محبي المحتوى الذي تقدمه أصبحت من اشد المعجبين بطريقتك في الشرح ... وادمنت الاستماع إليك ..المعلومة تصلني و تستقر في ذهني واجد تأثيرها علي شكرا جزيلا استاذي مع محبتي ❤

[@HamzaEl-abdellaoui]

اول عربي اجده هنا هاها

[@Ghizlanh]

@@HamzaEl-abdellaoui عربية من المغرب و الحبيب وافتخر ... واسمع يا حمزة .. أَنا البَحرُ في أَحشائِهِ الدُرُّ كامِنٌ فَهَل سَأَلوا الغَوّاصَ عَن صَدَفاتي فَيا وَيحَكُم أَبلى وَتَبلى مَحاسِني وَمِنكُم وَإِن عَزَّ الدَواءُ أَساتي I may not live in Morocco ... But Morocco 🇲🇦 is where my story began 😍

[@Emoxea]

و انا الثاني :D @@HamzaEl-abdellaoui

[@filipwilk317]

research suggests that fluoride can also deposit long term in your bones and pineal gland

[@sujith94510]

I guess I'm still somewhat confused as to why fluoride is required in water when it is present in toothpaste? Isn't that adequate for the positive effects of fluoride?

[@christiandeinzer4136]

Couldn’t find the water podcast. Can I please have a link?

[@garygoodell-ce5sc]

As a board certified dental specialist Endodontist I see the result of patients with poor hygiene who did not have any fluoride in their water growing up - massive tooth decay often leading to root canal treatment or tooth extraction. I don’t remember the exact percentage reduction in caries (cavities) in children using properly fluoridated vs. non-fluoridated water, but it is in the neighborhood of 65%. Water fluoridation is one of the most successful and beneficial public health initiatives in human history. The key is the proper fluoride water concentration which through much research was shown to be around one part per million (ppm). True toxicity in the sense you present is extremely rare, but possible. If the fluoridation ppm is 3-4 ppm some children will develop what’s called mottling which means a variety of excessively white spots on some of the teeth. Much higher fluoride concentrations in some rural communities or private wells teeth may result in brown staining of the teeth. I think one of the best things you recommended was to find out the fluoride concentration used in the community you live (again, should be around 1 ppm). If you are using an untested water source, you should contact your family dentist or local health department and get it tested (taking a sample in). With the results you can then get an oral supplement for your children if the ppm is too low or attempt to mitigate the situation if it is too high. think you over complicated this topic emphasizing harm over benefit

[@Socrataclysm]

Nice response. Tempered and perfectly made your point. Having very small amounts of fluoride in our drinking water has improved dental and heart health over the last 70 years in the United States. Poison is in the dose, like any chemical compound we ingest. Would be great if we all brushed twice a day and flossed, then we wouldn't need the water fluoride at all. But the cost of removing all fluoride countrywide would be high, and people would actually start dying of heart disease. I'm a bit confused by the comments, people seem to think you just straight up said "Fluoride should not be in the water", but you clearly tip-toed around that and said that as long as the dose is "not too high". I'd encourage everyone to look up the water reports that their local counties produce. You should be able to check the exact type of fluoride and PPM of the fluoride level in your water.

[@mballer]

I don't think you can support the idea that fluoride has greatly improved dental health.

[@offensivearch]

My brain health is far more important to me than not having cavities. Even if it works: who cares. People who prioritize teeth over the brain or thyroid are morons. The other thing is not eating sugary foods and sugar-laden drinks is probably far more important to preventing carries than adding fluoride to water. We should be focused on not feeding everyone junk, not on micro optimizations that may end up doing more harm than good overall. We care about overall health and fitness, not just teeth.

[@Dankapotamus918]

Your commercial toothpaste and mouth wash kill the bacteria that help produce N02 so it’s bad for your heart. Dental work is a very lucrative business but your big government is going to do you a favor and put a WASTE byproduct into a tube to smear on your teeth to help you out? Since when did they care about helping out? Why not put some vitamins in the water while your at it? Water soluble vaccines for everyone? To think they care enough about you to protect your teeth yet turn around and make a killing at the dentist is baffling. Your teeth never lost fluoride so why are you supplementing it? Also fluoride competes with iodine and wins so the more fluoride you inject the more damage to your thyroid and obviously critical thinking skills. Look all of it up it’s right in front of your face.

[@user-ew5ed9de9m]

I’ve started listening to your podcast on my way to work and home from work. I’m only a couple episodes in but was looking at the headings and didn’t see anything on it. Is there any way you could do something on the developing brains of babies,toddlers and kids and ways parents can stay calm or react when they are testing their limits?

[@ct607]

What about the goiter belt an lack of lugols? SOA 1853 driven out by fluoride and bromine?

[@jonesaleroy]

❤ the channel

[@tomsparks6099]

At 60, and never having been a great brusher, AND that toothpaste makes me gag, my teeth are exceptionally strong albeit some enamel loss from age. Logically toothpaste is only briefly in your mouth so the absorption of it is questionable. It seems to be a chemical whose developers found a market that has rarely been challenged. Follow the money.

[@AlexAndra-wf7sn]

Can the flouride in pharmaceutical products be addressed please? I know a few people who have been "floxxed" & its debilitating 😔

[@kevins6366]

Hi Andrew - what do you think about nano-hydroxyapatite in toothpaste? Is that safe or any issues with it.

[@The_Green_Queen]

How does one submit a question for a future AMA? I’m curious whether hot baths have the opposite effect of cold plunges.

[@Adam-el5gb]

Hi Andrew, just wanted to say you are the only other person I know of now with the same experience of adult teeth coming in behind the baby teeth. It was an awful experience, my baby teeth were weak, and the adult teeth would just split my baby teeth into two or three pieces which had to be pulled at the dentist.

[@The26Btsy]

Will you do podcast on Trigeminal Neuralgia

[@wendyg8536]

Please explain Polytetrafluoroethylene and Teflon Flu to folks..and the similarities with Covid symptoms.

[@stopbeingstupidtoday]

Talk about this. The current fluoride trials and The CALCIFICATION OF ARTERIES AND JOINTS with non-bioavailable calcium is being accelerated because of the calcium they put into our water as a water softener, along with the fluoride which make "strong bones and teeth!"

[@MrPinkfloydian]

Before writing what I wanted to write here... I had to check what Andrew was drinking 😂🤣😂 I'm kidding (although being truthful 😁) because I already knew l noticed Andrew's sense of humor 👌 but this AMA... gosh!... he was hilarious! 😂🤣😂 Thanks (also) for making me laugh, Andrew 🫂 Already looking forward to the next episode... and the water episode too 👌

[@maybeioverreacted2901]

We were made to use in elementary school

[@zxethaeoe]

Im assuming you were told not to swallow it?

[@youtubemom497]

I really want to start drinking Mateina Yerba Mate but it’s not available in the US! Please if the Huberman team is reading this make it available in the US!

[@reginaerekson9139]

25:31 oral b toothbrush and some peroxide and floss is really the best you can do