Very interesting! I've been enrolled in a vitamin D study for a while. My blood is tested twice a year. Through that I was able to tweak the supplements I take. I'm now taking 5000 IU gels 4 times a week. My doctor once added a vitamin D test to regular blood work and it was taken within days of my semi-annual D test. The results of both tests were close. I've been aiming to get my numbers between 50 and 60.
[01:40] The U-shaped curve is old data. [01:58] Routine testing of Vitamin D levels is not recommended. The tests may be unreliable and misleading. [02:47] Recommended dose is (at least) 2,000 IU (50 µg). [03:23] Overdose may occur over 10,000 IU (250 µg) a day. [03:36] Overweight, obese and elderly people may need more. [03:53] Again, no need for the average person to test and retest… [04:02] The (US) Institute of Medicine Recommendation is 600 IU to 800 IU. [04:11] Official recommendations are all over the map, ranging from just 200 IU a day, all the way up to 10,000 IU a day.
“Because routine measurement of serum 25OHD is not recommended, physicians are provided guidance on the recommended vitamin D intake to reach desirable vitamin D levels in over 97.5% of the population. Such recommendations run from as low as 200 IU/day in some European countries, to as much as 4000 to 10,000 IU/day, for the Vitamin D Council.[3]” Fuleihan Gel-H, Bouillon R, Clarke B, Chakhtoura M, Cooper C, McClung M, Singh RJ. Serum 25-Hydroxyvitamin D Levels: Variability, Knowledge Gaps, and the Concept of a Desirable Range. J Bone Miner Res. 2015 Jul;30(7):1119-33. doi: 10.1002/jbmr.2536. Epub 2015 May 7. PMID: 25952470. [3.] Bouillon R, Van Schoor NM, Gielen E, et al. Optimal vitamin D status: a critical analysis on the basis of evidence-based medicine. J Clin Endocr Metab. 2013; 98(8):E1283-304.
Very good observation. This is why I believe this whole Vit D thing is just one big pharma sell to "health oriented" people. The sun doesn't want my money and it gives me what I need, so I'll just take that instead of paying for pills and relying on bad measurements.
Game of Thrones season 6 finished.... thankfully now we have Dr. Greger's Vitamin D series to watch :D haha Maybe open the next video intro with GoT theme song :p
There's two big longitudinal studies being done in Finland and USA with different groups getting different amounts of D-vitamin and we will get results next year. Those should give us final answer about D-vitamin supplements.
I read everywhere that one should take vitamind D3 with magnesium and k2 vitamin. This, in order to make vitamin work better. * Why is this not mentioned by dr. Greger? * Are the other vitamins not necessary in order to make vitamin D work better? Thank you in advance. Greetings
ZENNology of Everything: I’ve read the same thing and yes it is recommended everywhere. I have been doing both combined with 5000D a day which I need in our northern climate due to very little sun.
Jeff T. Bowles wrote an excellent book "The Miraculous Results of Extremely High Doses of Vitamin D3" . It is his experiment with HUGE DOSES of D3 from 25,000 to 50,000 to 100,000 IU a day over a year period!.
***** .... that is not what the writer of the book did. He experiment with different levels and even at 100,000 IU - he had no side effects. Read the book and wake up! We've been lied to!
I am reading the reviews in amazon, people seem to have had amazing results. I'd like to have Dr Greger's opinion too.www.amazon.com/product-reviews/B005FCKN2S/ref=cm_cr_getr_d_paging_btm_3/280-8939096-4615465?k=THE+MIRACULOUS+RESULTS+OF+EXTREMELY+HIGH+DOSES+OF+THE+SUNSHINE+HORMONE+VITAMIN+D3++MY+EXPERIMENT+WITH++HUGE+DOSES+OF+D3+FROM+25%2C000++to+50%2C000+to+100%2C000+...+A+Day+OVER+A+1+YEAR+PERIOD+%28English&showViewpoints=1
I take 5000 I.U. D-3 daily. I get sunlight exposure, and also eat things that are supposed to be somewhat rich in the vitamin, and yet I score 45-47 on my tests for it for over a year now. That 1 time 50,000 D-2 yielded no real progress. So I switched to D-3 over the counter.
there are two different units for measuring vitamin d, one is ng/ml and one is nmol/l . it makes a big difference which one you have, because 45-47ng/ml is actually a very healthy range (about 120-130nmol/l) Actually a bit higher than it is necessary, and considering the large doses that you are taking i think a confusion in this scenario is quite likely.
Dr. Alejandro Diaz of Philippine Neurological Association recommends a daily Vitamin D intake of 600 IU for persons ages 1 to 70 years old and 800 IU for 71 years old and up. Anything less can put one at risk of severe bone degradation and other organ-related complications.
This is so contradictive with your other video. Where they say it is best to have around 112 nmol/liter. The curve at 0:35 says around 75 -80 nmol/liter is the sweet spot. Confusing
different guidelines. indigenous populations of aFrica usually have about 100-110 nmol/liter, in my opinion that is optimal for disease prevention and optimal ehalth. you do get a lot of the benefits with 80nmol/liter, below that amount you will not have adequate levels for ehalth and well being.
Yeah he goes into more detail in the rest of the video with more relevant charts (at 1:52). Takeaway: the curve at 0:35 is just observational and shouldn't be taken as guideline.
The Best Vitamin D3 Brand in Indian Market is Sunbless 60 K which is from Zydus Cadila Healthcare. This is with pre-emulsified form with Nano Technology advantage and is 4 times more effective then all other brands available in India.
Which is the best brand for high dose niacin 2000-3000 mg(nicotinic acid and not niacinamide) and Vitamin C 2000 mg (but not ascorbic acid) ? Thanks for your suggestion already.
Don't forget to take your vitamin D with vitamin K2. Together with Calcium these 3 are the combo you want to take. The one can't go without the other 2. For example Calcium without Vitamin D doesn't get transported. Calcium and Vitamin D without Vitamin K2 calcifies your arteries.
I think the very poor accuracy in serum 25OHD3 test results is attributed to negligence in blood sample handling/storage time and/or wide storage temperatures between different labs. The same sample sent out to a 100 different labs may have the same samples tested on a different date. More delays may result in more degradation of the 25OHD3 in the blood samples. Pick a good reliable lab that handle blood samples professionally and test it at the shortest time possible after blood collection and their laboratory practice has to be certified by the best and trusted accreditation guidelines specific to that country.
I had a vitamin D deficiency so I started supplementing with 2000 i.u. During the first week I felt great but then I started having a headache and feeling the pulse in my head very strongly. The only thing I had changed in my life had been taking these supplements so I decided to stop taking them and now I'm feeling much better.
no its not. just make sure youre getting enought magnesium and vitamin k. but there is no need for such a high dose. but for healthy individuals up to 10 000 every day have been studied and well documented.
They are refined so.. Per 100g of refined grains you would get around double the carbohydrates compared to 100g of unrefined for example rice crispies vs boiled rice
UHN NEWS More not always better when it comes to vitamin D Bourne Auguste Dr. Bourne Auguste, Clinical Fellow in the Home Dialysis Program, Nephrology, examined the 54-year-old man who took high doses of vitamin D over two years, resulting in kidney failure. (Photo: Dr. Bourne Auguste) An unusual case study from the Nephrology Clinic of Dr. Joanne Bargman at Toronto General Hospital (TG) has shown that excessive amounts of vitamin D can lead to kidney failure. The case study describes a 54-year-old man who had been prescribed a high dose of vitamin D by a naturopath. He did not have any prior fractures or documented vitamin D deficiency. Not finding the specific brand prescribed by the naturopath, the patient substituted another one that had a higher concentration of Vitamin D. Over two years, he took eight to 12 drops of vitamin D daily - for a total dose of 8,000 to 12,000 units a day. Related to this story: CBC Radio Interview with Dr. Bargman Read story in US News & World Report He now has kidney failure due to high blood levels of calcium leading to deposits of calcium in the kidney tissue. His kidney function is 34 per cent, compared to normal functioning at more than 60 per cent. According to Osteoporosis Canada, doses up to 2,000 units daily are safe. They recommend vitamin D doses from 800 to 2,000 units daily for older adults and those at high risk for osteoporosis. The case is reported in the April 8 edition of CMAJ (Canadian Medical Association Journal) by Drs. Bourne Auguste and Joanne Bargman, Nephrology, TG, and Dr. Carmen Avila-Casado, Pathology, UHN. "Patients should recognize that vitamin D is a medication, and can be associated with risks, particularly when taken at large doses," says Dr. Auguste, Clinical Fellow in the Home Dialysis Program, Nephrology, and the first author of the case report. "More is not better in this example." Symptoms of vitamin D toxicity can include: high blood pressure, confusion and kidney stones. Dr. Auguste also points out that not everyone might need vitamin D supplements, and that low-risk patients should speak to their physicians about why they are considering taking it.
not neccesary if adecuate vitamin k is present in the diet. might benefit people without optimal intake. natto is high in k2 and there are supplements. but if you eat dark green vegetables every day i think it is superflous. then again, almost nobody does so. it certainly isnt harmful in any way.
Dr G would you be so kind as to expand on non celiac guten sensitivity please as it's looking most probable that a good chunk of the population has some kind of issue with grains (me included👎). A Dr Peter Osborne appears to be leading the way with this but the wisdom conflicts as he recommends a paleo style of eating (animals)👎 plus he sells many potions and powders mmmm. The science behind what he says about grains does appear sound though. Many thanks
"Why did the FDA set recommendations at..." Oh I know the answer to this one, look at the committee that makes the recommendations- one of them holds a patent on medication used to treat low levels of vitamin D.
Doctor Greger, would you be kind enough to clarify as to why the graph @ 0:25 showed a very large difference in the optimum plasma vitamin D range at around(70 - 80) nmol/l with the gragh @ 1:47 which showed the optimum plasma vitamin D range to be around (137.5 - >187.5) nmol/l? Which range reflects the true sweet spots? Was the wrong unit used in the latter? Should it be in ng/ml instead of nmol/l?
I've tried Vit D supplementation as both a vegan and non vegan and every time without fail it has caused a eczema flare up. In both McDougals and T Colin Campbells publications they don't recommend Vit D supplementation and advocate some sunlight exposure. Mentioning that the Vitamin D in pills is not the same and the endogenous Vitamin D we produce and supplementation could even increase the risk of cancer? And how do the studies know they have accurate readings if the margin for error is so big? Are you bringing out a supplement range Dr Greger?
We have to go over vitamins 1 by 1. And I would like to know about BCAA (to avoid the muscle muscle loss with ageing (sarcopenia)). How much of BCAA daily? And what is the limit for vitamin A. It sneaks in everywhere, we hit toxicity levels fast.
Would like to know the answer as well, since I come from a very sunny and hot country and even while trying to hide from the sun, I get a good exposure to it.
So in any of the Vitamin D videos does he address the comment last video about not being sure whether there is causation or whether it's just correlation? He mentioned that we don't really know whether vitamin D is a result of good health or whether we get good health from high vitamin D (in which case supplementation would help). Seems like it was glossed over and just assumed Vitamin D supplementation was helpful?
I am wearing a Fitbit Charge 2. It measures my heartrate and steps. I am deficient in vitamin D. Since i am taking vitamin D (3000 IU/ day), i don't if this is related to my vit. D intake, but i noticed my resting heartrate went from 71 to 65 in about two weeks...remarkable (i am pretty athletic and i have not been practicing any sports last months..i feel somewhat calmer now...i sleep better and longer, but my body feels jittery. Weird)
How ironic to see this video on my feed; and today I purchased a vegan D3 2500 units and am wondering if I should consume daily or every other day...? Any expertise suggestions will be greatly appreciated.
Snehal Krishnan nooooo its way too much and dangerous I was low in my last blood work and my dr. Gave me 5,000 UI a day now I have my second lab job and we might reduce them to 3000 or 1000 depending the results do not do more than 5000 a day
One video says you can take 10000 per day without any harm but drink lots of water. So many variations on youtube it leaves you confused. My son has inflammation so he is on 4000 to 10000 per day for better absorption.
Then why in indigenous populations that have day long exposure to sunlight around the equator that have had their blood tested ALL have the same D levels? Turns out that the body shuts off D synthesis at (if I remember correctly) 48.9 nmol?
how much would a breastfeeding mother need to take to have sufficient amount in her breastmilk for an exclusively breastfed infant? (rather than using vit. d drops)
He is a doctor. He cant give advise without knowing your medical backstory... He just provide what are best levels and why ...its up to you what you do with it. You can go to your own doctor and discuss your findings and see what dosage YOU need for YOUR current level in order to get to the optimal levels. Best wishes. Ps: i did this with my doctor. She urges to take levels recommended by the medicine of institute (for my case this was 880 IU per day). But she allowed me to take 2000IU /day. Blood check is next month to see if it is gone up.
Probably safe. It depends where you live, how much you spend in sun, how heavy you are and what is your skin color to determine how much you actually need. If you want to play it safe, take that every other day. I take 100ug every day in winter and occasionally in summer.
2,000I.U./day at least or 4,000-5,000I.U./day if you're obese. What dr. Greger doesn't mention is that you dont' have to take this daily, you can take once a week. So, if you're slim take 14,000I.U. on any given day of the week, but once, or 28,000-35,000I.U., if you're obese. If you think is too much take the weekly amount in two sesions. Explanation: the decay of vit.D3 is slow, so you won't run out of stock until next week.
***** The ones i have say 30 micrograms or something, it says its 600% of my daily intake and says not to take more than that daily. So how do i figure that one out?
zukodude487987 30mcg D3 = 1,200I.U D3. Imagine that for a white guy doing sun bath (in swim suit) after 25-30 minutes naturally produces around 12,000I.U.-14,000I.U. D3(300mcg-350mcg D3). 30mcg is not 600% daily intake. That's bulshit.
+Andrei Piatra That's what it says on it. I am not even sure if its micro grams or not, its a weird u shaped symbol like a greek letter or something. Almost like this "ųg"
Here is a good article from the NIH ods.od.nih.gov/factsheets/VitaminD-Consumer/
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The safe dose of vitamin D supplements to get most of the population to the optimal level is 8.895 i.u. a day.
7 ปีที่แล้ว
ncbi.nlm.nih.gov
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8895 iu for 97,5% of the population.
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zomg222 that's why statistic domain exist.
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You don't need to test an entire population to get a high statistical correlation with the entire population. You don't need to get taken all you blood to know a concentration of something specific in blood. en.m.wikipedia.org
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That's why the study in question apply to correct vitamin D levels of 97,5% o the population. Not 100%.
Yes. I've been doing 5,000 IU A DAY for the past 8 years. My doctor tested my Vitamin D level and said I had the highest Vitamin D number she's ever seen. I was also only 3/4 of the way to toxic levels. Don't go beyond 8,000 per day as this can cause toxicity.
What was the level that your testing showed? Do you know how many doctors don't study on this and don't really know what is a good level. If you were between 60 and 80 that is more the level that is thought to be the best. Mine was 80 at one test when taking 50K a week and the doctor said it was too high. So, it was just fine and I was and still am very healthy.
Doctor needs to get out side and play its July ! Put down the dam books turn off computer go outside your skins too white and wasting time on this minor issue what we supposed to buy these hormone pills for the rest of our lives. .like your mom said. Go out play
for a year yes, but for a short while to prevent deficiency it is safe and no cause of concern. your doctor is a medical professional and he knows what he is doing. you own skin can produce up to 20 000iu per day so considering that the dose is only about twice as high
Mario I have never heard that B12 should be taken after a meal when protein metabolism is increased. Maybe this is only necessary with small amounts of B12? 2500 mcg (which is what Dr. Greger recommends) is quite a lot of B12, and I remember him mentioning that this B12 saturation at this dose is easily absorbed without any special attention to details like timing, food combining, etc.
Take Vitamin K with Vitamin D and you will be fine. Vitamin K protects you from reaching the level of toxicity of too much Vitamin D. And by the way, its very hard to take too much... and there is no reason anyone should reach the 20,000iu threshold unless you are seriously deficient.
Very interesting! I've been enrolled in a vitamin D study for a while. My blood is tested twice a year. Through that I was able to tweak the supplements I take. I'm now taking 5000 IU gels 4 times a week.
My doctor once added a vitamin D test to regular blood work and it was taken within days of my semi-annual D test. The results of both tests were close.
I've been aiming to get my numbers between 50 and 60.
[01:40] The U-shaped curve is old data.
[01:58] Routine testing of Vitamin D levels is not recommended. The tests may be unreliable and misleading.
[02:47] Recommended dose is (at least) 2,000 IU (50 µg).
[03:23] Overdose may occur over 10,000 IU (250 µg) a day.
[03:36] Overweight, obese and elderly people may need more.
[03:53] Again, no need for the average person to test and retest…
[04:02] The (US) Institute of Medicine Recommendation is 600 IU to 800 IU.
[04:11] Official recommendations are all over the map, ranging from just 200 IU a day, all the way up to 10,000 IU a day.
“Because routine measurement of serum 25OHD is not recommended, physicians are provided guidance on the recommended vitamin D intake to reach desirable vitamin D levels in over 97.5% of the population. Such recommendations run from as low as 200 IU/day in some European countries, to as much as 4000 to 10,000 IU/day, for the Vitamin D Council.[3]”
Fuleihan Gel-H, Bouillon R, Clarke B, Chakhtoura M, Cooper C, McClung M, Singh RJ. Serum 25-Hydroxyvitamin D Levels: Variability, Knowledge Gaps, and the Concept of a Desirable Range. J Bone Miner Res. 2015 Jul;30(7):1119-33. doi: 10.1002/jbmr.2536. Epub 2015 May 7. PMID: 25952470.
[3.] Bouillon R, Van Schoor NM, Gielen E, et al. Optimal vitamin D status: a critical analysis on the basis of evidence-based medicine. J Clin Endocr Metab. 2013; 98(8):E1283-304.
if blood test results are so unreliable then how can you take any notice of the research which also tested blood levels? wrongly?
Very good observation. This is why I believe this whole Vit D thing is just one big pharma sell to "health oriented" people. The sun doesn't want my money and it gives me what I need, so I'll just take that instead of paying for pills and relying on bad measurements.
2000 IE preparates are very cheap bought online eg - at least in europe
blood tests for vitamin D are unreliable. Where did u get that conclusion for other blood test results? I really didn't see that part in the video.
True
Reasearch conducted in a single study/lab would produce measurable comparisons.
Too much Vitamin D clifhangers, Dr. Greger. ;)
Ahh not again! Agree, haha!
+Chuck Steak lol, so brilliant.
Chuck Steak P
*****
why?
Game of Thrones season 6 finished.... thankfully now we have Dr. Greger's Vitamin D series to watch :D haha
Maybe open the next video intro with GoT theme song :p
Hi Greek Harry Potter!
Mycenaea
Hi Greek Goddess :)
There's two big longitudinal studies being done in Finland and USA with different groups getting different amounts of D-vitamin and we will get results next year. Those should give us final answer about D-vitamin supplements.
Basaltq,
What are the results?
@@MaximC www.ncbi.nlm.nih.gov/pubmed/28768407
@@VinylUnboxings wow, they recommend 8000 IU
@@milksisters interesting indeed
@@milksisters jesus f%^K how do you take 8k vitamin D a day?
I read everywhere that one should take vitamind D3 with magnesium and k2 vitamin. This, in order to make vitamin work better.
* Why is this not mentioned by dr. Greger?
* Are the other vitamins not necessary in order to make vitamin D work better?
Thank you in advance.
Greetings
You didn't read it everywhere, because I've never heard of doing that.
ZENNology of Everything:
I’ve read the same thing and yes it is recommended everywhere. I have been doing both combined with 5000D a day which I need in our northern climate due to very little sun.
@@SnowinSummer37 you dont need that much
You’re right. I take 5000 IU and this one has K2 included. You need magnesium as well. I take 240 mg mag glycinate
Hi, one other thing that hasn't been considered. Doesn't Vit D get stored in the liver. Wouldn't a weekly dose be sufficient?
Jeff T. Bowles wrote an excellent book "The Miraculous Results of Extremely High Doses of Vitamin D3" . It is his experiment with HUGE DOSES of D3 from 25,000 to 50,000 to 100,000 IU a day over a year period!.
***** ...who say? You Big Pharma?
***** .... that is not what the writer of the book did. He experiment with different levels and even at 100,000 IU - he had no side effects. Read the book and wake up! We've been lied to!
gee too bad it is fake
I am reading the reviews in amazon, people seem to have had amazing results. I'd like to have Dr Greger's opinion too.www.amazon.com/product-reviews/B005FCKN2S/ref=cm_cr_getr_d_paging_btm_3/280-8939096-4615465?k=THE+MIRACULOUS+RESULTS+OF+EXTREMELY+HIGH+DOSES+OF+THE+SUNSHINE+HORMONE+VITAMIN+D3++MY+EXPERIMENT+WITH++HUGE+DOSES+OF+D3+FROM+25%2C000++to+50%2C000+to+100%2C000+...+A+Day+OVER+A+1+YEAR+PERIOD+%28English&showViewpoints=1
Actually high doses puts you at risk for atherosclerosis
Useful video, great
I take 5000 I.U. D-3 daily. I get sunlight exposure, and also eat things that are supposed to be somewhat rich in the vitamin, and yet I score 45-47 on my tests for it for over a year now. That 1 time 50,000 D-2 yielded no real progress. So I switched to D-3 over the counter.
there are two different units for measuring vitamin d, one is ng/ml and one is nmol/l . it makes a big difference which one you have, because 45-47ng/ml is actually a very healthy range (about 120-130nmol/l) Actually a bit higher than it is necessary, and considering the large doses that you are taking i think a confusion in this scenario is quite likely.
so on sunny days no supplements and in winter 2000iu?
3000
Depends on how much sun you are actually getting I would imagine. Probably couldn't hurt to take 2000 anyways unless you are out in the sun a lot.
Dr. Alejandro Diaz of Philippine Neurological Association recommends a daily Vitamin D intake of 600 IU for persons ages 1 to 70 years old and 800 IU for 71 years old and up. Anything less can put one at risk of severe bone degradation and other organ-related complications.
excellent video, thanks!
What's the optimal timing for D and B12?
Yes it make sense to me.
Thank you for share....
This is so contradictive with your other video. Where they say it is best to have around 112 nmol/liter.
The curve at 0:35 says around 75 -80 nmol/liter is the sweet spot.
Confusing
different guidelines. indigenous populations of aFrica usually have about 100-110 nmol/liter, in my opinion that is optimal for disease prevention and optimal ehalth. you do get a lot of the benefits with 80nmol/liter, below that amount you will not have adequate levels for ehalth and well being.
Watch the whole vid lmao
Yeah he goes into more detail in the rest of the video with more relevant charts (at 1:52). Takeaway: the curve at 0:35 is just observational and shouldn't be taken as guideline.
The Best Vitamin D3 Brand in Indian Market is Sunbless 60 K which is from Zydus Cadila Healthcare. This is with pre-emulsified form with Nano Technology advantage and is 4 times more effective then all other brands available in India.
Which is the best brand for high dose niacin 2000-3000 mg(nicotinic acid and not niacinamide) and Vitamin C 2000 mg (but not ascorbic acid) ? Thanks for your suggestion already.
Wow good stuff DOC !!
Is vitamin D3 from lichen a secure source?
yes
these cliffhangers dr greger :P cheeky
I needed to take 5000 IU to get it up, and it’s still a slow improvement. Will stay on 5000 IU for a while. I have long COVID.
Intresting
Don't forget to take your vitamin D with vitamin K2. Together with Calcium these 3 are the combo you want to take. The one can't go without the other 2. For example Calcium without Vitamin D doesn't get transported. Calcium and Vitamin D without Vitamin K2 calcifies your arteries.
in my own case taking 3000 units a day helped greatly with my depression
yes, I eat Nato for K2.
Good luck trying to eat Nato lol. Have fun with that
Dead Prepper supplement
Fotsirvelk is a 45ug k2 supplement daily ok? If i take it with d3 and coconut milk
I think the very poor accuracy in serum 25OHD3 test results is attributed to negligence in blood sample handling/storage time and/or wide storage temperatures between different labs. The same sample sent out to a 100 different labs may have the same samples tested on a different date. More delays may result in more degradation of the 25OHD3 in the blood samples. Pick a good reliable lab that handle blood samples professionally and test it at the shortest time possible after blood collection and their laboratory practice has to be certified by the best and trusted accreditation guidelines specific to that country.
Great video!
I take 5,000 IU a day! I suffer from a severe d3 deficiency at 7 ng/mL
Sara v curious if you suffered from depression at that level?
I take 2000 every day I was 8 initially now I am 40
@@Musician_Robert no, just worse anxiety and fatigue
Blessed love to all, is this cod liver oil ?? Watching from Jamaica west Indies !!
I had a vitamin D deficiency so I started supplementing with 2000 i.u. During the first week I felt great but then I started having a headache and feeling the pulse in my head very strongly. The only thing I had changed in my life had been taking these supplements so I decided to stop taking them and now I'm feeling much better.
Awesome.
Doctor you recommend 2000 IU. Is a healthy individual taking 5000 IU per day too big a risk?
no its not. just make sure youre getting enought magnesium and vitamin k. but there is no need for such a high dose.
but for healthy individuals up to 10 000 every day have been studied and well documented.
If you dont go out in the sun 5000 is good. Go and get checked at the doctor for your levels.
@@SYN30STM he just said the test is usless lol
What form is best the oil or capsule 💊
What about puffed grains? Are the healthy or not??
They are refined so.. Per 100g of refined grains you would get around double the carbohydrates compared to 100g of unrefined for example rice crispies vs boiled rice
Healthy compared to beef or bacon? Yes. Healthy compared to steel cut oatmeal or other whole grains? No.
UHN NEWS
More not always better when it comes to vitamin D
Bourne Auguste
Dr. Bourne Auguste, Clinical Fellow in the Home Dialysis Program, Nephrology, examined the 54-year-old man who took high doses of vitamin D over two years, resulting in kidney failure. (Photo: Dr. Bourne Auguste)
An unusual case study from the Nephrology Clinic of Dr. Joanne Bargman at Toronto General Hospital (TG) has shown that excessive amounts of vitamin D can lead to kidney failure.
The case study describes a 54-year-old man who had been prescribed a high dose of vitamin D by a naturopath. He did not have any prior fractures or documented vitamin D deficiency.
Not finding the specific brand prescribed by the naturopath, the patient substituted another one that had a higher concentration of Vitamin D. Over two years, he took eight to 12 drops of vitamin D daily - for a total dose of 8,000 to 12,000 units a day.
Related to this story:
CBC Radio Interview with Dr. Bargman
Read story in US News & World Report
He now has kidney failure due to high blood levels of calcium leading to deposits of calcium in the kidney tissue. His kidney function is 34 per cent, compared to normal functioning at more than 60 per cent.
According to Osteoporosis Canada, doses up to 2,000 units daily are safe. They recommend vitamin D doses from 800 to 2,000 units daily for older adults and those at high risk for osteoporosis.
The case is reported in the April 8 edition of CMAJ (Canadian Medical Association Journal) by Drs. Bourne Auguste and Joanne Bargman, Nephrology, TG, and Dr. Carmen Avila-Casado, Pathology, UHN.
"Patients should recognize that vitamin D is a medication, and can be associated with risks, particularly when taken at large doses," says Dr. Auguste, Clinical Fellow in the Home Dialysis Program, Nephrology, and the first author of the case report. "More is not better in this example."
Symptoms of vitamin D toxicity can include: high blood pressure, confusion and kidney stones.
Dr. Auguste also points out that not everyone might need vitamin D supplements, and that low-risk patients should speak to their physicians about why they are considering taking it.
and vitimin k2 supplementaion to avoid calcium build up in organs and arteries....?
not neccesary if adecuate vitamin k is present in the diet. might benefit people without optimal intake. natto is high in k2 and there are supplements. but if you eat dark green vegetables every day i think it is superflous. then again, almost nobody does so. it certainly isnt harmful in any way.
Dr.Raimund von Helden, a far as I remember, says: If you take 10 000 I.U. you should better take K2 with it.
But everytime take magnesium!!!!
Dr G would you be so kind as to expand on non celiac guten sensitivity please as it's looking most probable that a good chunk of the population has some kind of issue with grains (me included👎).
A Dr Peter Osborne appears to be leading the way with this but the wisdom conflicts as he recommends a paleo style of eating (animals)👎 plus he sells many potions and powders mmmm. The science behind what he says about grains does appear sound though.
Many thanks
"Why did the FDA set recommendations at..." Oh I know the answer to this one, look at the committee that makes the recommendations- one of them holds a patent on medication used to treat low levels of vitamin D.
Doctor Greger, would you be kind enough to clarify as to why the graph @ 0:25 showed a very large difference in the optimum plasma vitamin D range at around(70 - 80) nmol/l with the gragh @ 1:47 which showed the optimum plasma vitamin D range to be around (137.5 - >187.5) nmol/l? Which range reflects the true sweet spots? Was the wrong unit used in the latter? Should it be in ng/ml instead of nmol/l?
Have you listened to the video? He explains it as the second graph comes up
I've tried Vit D supplementation as both a vegan and non vegan and every time without fail it has caused a eczema flare up. In both McDougals and T Colin Campbells publications they don't recommend Vit D supplementation and advocate some sunlight exposure. Mentioning that the Vitamin D in pills is not the same and the endogenous Vitamin D we produce and supplementation could even increase the risk of cancer? And how do the studies know they have accurate readings if the margin for error is so big? Are you bringing out a supplement range Dr Greger?
dr greger is not affiliated with any company and is strictly non profit
i usually take 1 pump (1000) and some days 2 pumps. now i feel relieved knowing that 10,000 is toxicity
where is the NEXT?)
We have to go over vitamins 1 by 1. And I would like to know about BCAA (to avoid the muscle muscle loss with ageing (sarcopenia)). How much of BCAA daily? And what is the limit for vitamin A. It sneaks in everywhere, we hit toxicity levels fast.
what does ui stand for in vitamin dosage?
it's iu and it stands for international units.
What do we learn?
If you take the D too much it is detrimental.
I can't handle the suspense! I must know!!!!
Similar to iron, can our body regulate natural vitamin D intake from sunlight better than vitamin D supplementation?
if you have adequate sunlight and live below the 37 paralell then sun exposure is preferred to vitamin d supplementation
What if I live in Ecuador (sunny all year round)? How much vitamin D supplements? How long should I expose myself to the sun with sunscreen?
Would like to know the answer as well, since I come from a very sunny and hot country and even while trying to hide from the sun, I get a good exposure to it.
See this link: nutritionfacts.org/2011/09/12/dr-gregers-2011-optimum-nutrition-recommendations/
if youre outside at all (no sunscreen) Then you are very unlikely to be deficient in that region
Is the recommendation for children for vitamin D also 2,000 IU per day?
Your video editor is having a grand ol' time at our expense.
Been taking 10000iU. Never got my levels checked. Just ordered 5000iU. No point in overdoing it.
Ni
I realize that i am very deficient in vit D txx for info
is this vitimin d3?
Yeah
Dr greger, i'd like to know if. fried rice is unhealthier than steamed rice, please answer me!
Ricardo, you can't call anything fried "healthy."
I hate your cliffhangers!!! :DI didn't even care about vitamin D until now but now u can't bare the suspense!
I started talking 2000 iu and started feeling not well
So in any of the Vitamin D videos does he address the comment last video about not being sure whether there is causation or whether it's just correlation? He mentioned that we don't really know whether vitamin D is a result of good health or whether we get good health from high vitamin D (in which case supplementation would help). Seems like it was glossed over and just assumed Vitamin D supplementation was helpful?
Just tested. Came back as 24. Was taking 400 IU. That appears to be not enough.
I am wearing a Fitbit Charge 2.
It measures my heartrate and steps. I am deficient in vitamin D.
Since i am taking vitamin D (3000 IU/ day), i don't if this is related to my vit. D intake, but i noticed my resting heartrate went from 71 to 65 in about two weeks...remarkable (i am pretty athletic and i have not been practicing any sports last months..i feel somewhat calmer now...i sleep better and longer, but my body feels jittery. Weird)
good for you!
How ironic to see this video on my feed; and today I purchased a vegan D3 2500 units and am wondering if I should consume daily or every other day...? Any expertise suggestions will be greatly appreciated.
every day should be best
I take 10,000 IU daily, is this okay?
Snehal Krishnan nooooo its way too much and dangerous I was low in my last blood work and my dr. Gave me 5,000 UI a day now I have my second lab job and we might reduce them to 3000 or 1000 depending the results do not do more than 5000 a day
remagine I'm glad I read your comment because I've been taking 10,000IU since winter started. I will just take 5,000IU now, thank you for responding.
remagine can I take a RAW vitamin d3 supplement of 2000 IU?
i am taking 8k to 9k per day. Been doing so for about a month. My tested levels are always in the 20s. I want to boost my D levels into the 70s .
yes
One video says you can take 10000 per day without any harm but drink lots of water. So many variations on youtube it leaves you confused. My son has inflammation so he is on 4000 to 10000 per day for better absorption.
How much D3 vitamin I should take it’s 60000 IU??
my prof said said everyone had to take vitamin D supplement because we don't get it in our diet!! is that true?
Faezeh Tehrani pretty much.
Unless ur in Florida .... working as a roofer
Hi
Then why in indigenous populations that have day long exposure to sunlight around the equator that have had their blood tested ALL have the same D levels? Turns out that the body shuts off D synthesis at (if I remember correctly) 48.9 nmol?
+Banepfc Yes with naturally formed D from the sun but from supplements? As this video points to a much higher level than 48.9?
***** My mistake...he was spot on with the natural level...I got the ng as nmol arse about face lol
the recommendations are low so the people can get sick and pay for the medications and so on
Stop it Greger, tell us now!
how much would a breastfeeding mother need to take to have sufficient amount in her breastmilk for an exclusively breastfed infant? (rather than using vit. d drops)
Is the sun the best source of Vitamin D
Yes.
why do you even put up a video no real answer about your topic just alot of babble
He is a doctor. He cant give advise without knowing your medical backstory...
He just provide what are best levels and why ...its up to you what you do with it.
You can go to your own doctor and discuss your findings and see what dosage YOU need for YOUR current level in order to get to the optimal levels.
Best wishes.
Ps: i did this with my doctor. She urges to take levels recommended by the medicine of institute (for my case this was 880 IU per day). But she allowed me to take 2000IU /day.
Blood check is next month to see if it is gone up.
which is better for vitamin D? solarium or spray tan?
is that sunscreen on your face? which is better? sun
that's my natural color. racist!
Humans are meant to be outside when it's sunlight ..so yeah Vitamin D
Solarium is the natural way to get sun.
cyc00000
thank you!
I take 5000 iu daily. Is this too low or too high?
I take that much too, could drop it to four days a week because D is fat soluble the body can store it and we can get the same weekly amount, roughly.
I do to but I am a night shift worker and it seems to be good enough for me.
Probably safe. It depends where you live, how much you spend in sun, how heavy you are and what is your skin color to determine how much you actually need. If you want to play it safe, take that every other day. I take 100ug every day in winter and occasionally in summer.
2000 a day for how long?
How much D should i take?
2,000I.U./day at least or 4,000-5,000I.U./day if you're obese. What dr. Greger doesn't mention is that you dont' have to take this daily, you can take once a week. So, if you're slim take 14,000I.U. on any given day of the week, but once, or 28,000-35,000I.U., if you're obese. If you think is too much take the weekly amount in two sesions. Explanation: the decay of vit.D3 is slow, so you won't run out of stock until next week.
*****
The ones i have say 30 micrograms or something, it says its 600% of my daily intake and says not to take more than that daily. So how do i figure that one out?
zukodude487987
30mcg D3 = 1,200I.U D3. Imagine that for a white guy doing sun bath (in swim suit) after 25-30 minutes naturally produces around 12,000I.U.-14,000I.U. D3(300mcg-350mcg D3). 30mcg is not 600% daily intake. That's bulshit.
+Andrei Piatra That's what it says on it. I am not even sure if its micro grams or not, its a weird u shaped symbol like a greek letter or something. Almost like this "ųg"
+Andrei Piatra do you know a really good vegan vitamin d?
I am only 60kgs male and what would be the safe dose. I take 20000ui
thats a good dose for you :)
Prince Vegeta Anyone
Ahhhh next!
I heard too much Vitamin D it can fur up your arteries so whats the best level to take...as everyones body has different needs.
Here is a good article from the NIH ods.od.nih.gov/factsheets/VitaminD-Consumer/
The safe dose of vitamin D supplements to get most of the population to the optimal level is 8.895 i.u. a day.
ncbi.nlm.nih.gov
8895 iu for 97,5% of the population.
zomg222 that's why statistic domain exist.
You don't need to test an entire population to get a high statistical correlation with the entire population.
You don't need to get taken all you blood to know a concentration of something specific in blood.
en.m.wikipedia.org
That's why the study in question apply to correct vitamin D levels of 97,5% o the population. Not 100%.
What is this.....a new kind of click Bait?
I take 5,000 UI vitamin D3 three times a week. I'm 28 and have normal BMI. Is this enough?
Yup. 2000/day=14000/week, or 5000 x 3=15000/week. So seems like you're on target.
with the Multivitamin 400UI+1000UI= 1400UI/day.
donot use multivitamin..some vitamins if in excess, damages ur health. But it is preffered to consume vitamin D only.
Yes. I've been doing 5,000 IU A DAY for the past 8 years. My doctor tested my Vitamin D level and said I had the highest Vitamin D number she's ever seen. I was also only 3/4 of the way to toxic levels. Don't go beyond 8,000 per day as this can cause toxicity.
What was the level that your testing showed? Do you know how many doctors don't study on this and don't really know what is a good level. If you were between 60 and 80 that is more the level that is thought to be the best. Mine was 80 at one test when taking 50K a week and the doctor said it was too high. So, it was just fine and I was and still am very healthy.
Doctor needs to get out side and play its July ! Put down the dam books turn off computer go outside your skins too white and wasting time on this minor issue what we supposed to buy these hormone pills for the rest of our lives. .like your mom said. Go out play
Yeah i think 2000 iu is good , and you add alimentation
I see this is a 6 year old video and wonder if the presenter still supports the information.
2000 iu a day will barely increase your vitamin d. Its nowhere near enough
That is for "average people" How about vegans?
Just get to the point already.
Jessie Pinkman ya me too
Yup im taking stuff called Thamine 100mg 3 times a time, my boys back up in running
😂
Dr. Just prescribed me with vitamin D 50000Ui isn’t that to much?
for a year yes, but for a short while to prevent deficiency it is safe and no cause of concern. your doctor is a medical professional and he knows what he is doing. you own skin can produce up to 20 000iu per day so considering that the dose is only about twice as high
আমি না অনেক চিকন তার জনে অনেক কিছু খালা কিচু হয় না তার পলে আমি কি করতে পারি
Is 2000iu safe without K2 added?
aabbmm9 not true. Vit D will put calcium in your joints and arteries if you dont have Vit k and magnesium with it.
yes
haha!!! good one Dr.!
OK, but is this D2 or D3?
vitamin D taken with vitamin B12, thoughts?
Should be fine.
What's your reasoning behind these recommendations?
Mario I have never heard that B12 should be taken after a meal when protein metabolism is increased. Maybe this is only necessary with small amounts of B12? 2500 mcg (which is what Dr. Greger recommends) is quite a lot of B12, and I remember him mentioning that this B12 saturation at this dose is easily absorbed without any special attention to details like timing, food combining, etc.
TheAltruismActivist my b12 from jamieson says take with meal
Mario What irrational conclusions did I draw? I didn't even comment on simultaneous vitamin D ingestion....
Don't be a tease
Will I overdose eventually if I take 4000 IU/day? My mood is better when I up it to 4000 as opposed to 2000. Don't feel like it's enough for me.
no thats fine just make sure you get enough magnesium and vitamin k , which is usually the case with healthy diets
Take Vitamin K with Vitamin D and you will be fine. Vitamin K protects you from reaching the level of toxicity of too much Vitamin D.
And by the way, its very hard to take too much... and there is no reason anyone should reach the 20,000iu threshold unless you are seriously deficient.
There are racial differences.
And there it is... The race card... Blahahahahahah
not really racial, but skin colour yes
mixxndj "race card" term is usually used kind of like "the victim card"
what are you talking about?
i took 20000 while watching xd
Great video!
Hi, one other thing that hasn't been considered. Doesn't Vit D get stored in the liver. Wouldn't a weekly dose be sufficient?
yes.
Hi, one other thing that hasn't been considered. Doesn't Vit D get stored in the liver. Wouldn't a weekly dose be sufficient?