Everything you need to know about Vitamin D

I was a bit under 30, but wanted to reach 50.
Not much changed year by year until I increased to 6000 iu/d
Now I maintain (hopefully) with 4000

For fun, Type "Safety Data Sheet Vitamin D3" in an on-line search... "Toxic if swallowed or in contact with skin. Fatal if inhaled. Causes damage to organs through prolonged or repeated exposure if swallowed". 
It's used in d-Con rat bait. The EU lists it as an endocrine disruptor and biocide. Dr Tom Cowan (2022) discussed 40 papers showing problems with the supplements. Dr Dan Roytas investigated all supplements and found Vit D3 in the body is just a marker for sun exposure.
There are 32 other benefits of sunshine so enjoy it, but not too much.

Do the risks of too much vitamin D take into account blood level ?
What if you "mega dose" but have normal blood levels

Thank you

Sounds like "low vitamin d" levels are actually normal in a way because in certain individuals their cells may absorb more vitamin D so there will be less of it in the blood. Someone truly deficient should significant improvements in basically most functions of vitamin D, so bone density, immune activity, heart health, etc.

I expected you to explain "empirical supplementation" when you came back to it later, but you didn't. What makes it empirical? Also why doesn't it count as a general recommendation to supplement? (Since you said earlier in the video that health organizations don't broadly recommend to supplement)

Couple of remarks:
D3 is added to animal feed along with bunch of other vitamins and minerals. And when considering the conditions where animals bred to be eaten are kept, getting D3 from them is far from natural.
D3 in cows milk is added from greese of sheep wool.
Lactose intolerance is not a condition. It's normal. We are not designed to suck mammary milk after weaning. That doesnt make our diet "restrictive".

What is your take on probiotics? Supplements and dietary changes. Does it actually matter or help?

I took a d3+k2 supplement..within months I developed sensitive hearing where I couldn’t bear loud noises and later on ringing of the ears. This stopped gradually after not taking the supplement anymore. I think people should be careful with these supplements because they can calcify the hearing bones which happened to me.
Also is the hydroxelated fit D that requires a prescription the sulfur based water soluable version that is identical to the vit D that’s produced in your skin?

People who are over weight normally have low D3 blood levels.. because the D3 stays in the Fat tissues, And is not absorbed into the bones!

People with low Thyroid hormone levels will have low D3 levels.. (( this includes those who have low MINERAL levels ))

Those people who live in Southern Hemisphere OR close to the EQUATOR DO not necessarily have Higher D3 levels..!

Great Video.. Tnx..,

STOP using i.u. units. designed to frighten people with all those zeros. use milligrams.

Thanks for all of this detail.
I was diagnosed with vitamin D deficiency and was recommended supplements (cod liver oil) which didn't help so I was then recommended to take a D3 (400IU) supplement that made no difference. I was then recommended to take 800IU D3 also with no improvement. Each time I took the supplements and had a test 2 months later.
Then I thought I'd try sunshine and sure enough my D3 levels went to mid line.
My take away? For me at least, the sun is my only option.

Where is the article information for prediabetes/diabetes and vitamin D?

Thorough. Thanks

When I started tracking D3 it was at 18 ng/mL. Went up to 26 with AG1, switched to powder form from amazon bulk supplements and up the dosage got 56 on the follow up test, went nutty with the dosage and got 152 ng/mL on the last test. I also take the 600 mcg k2 from fermented natto on amazon. Both really cheap products.

Thank you for your clarity. This is such great information.

I don't notice any difference when I take vitamin D supplements.
But, I feel much better after sunbathing for around 30 minutes.
I think the skin puts the vitamin where it needs to go and pills don't.

You refer to the RDA several times during the video, but never get into why the RDA is set at these levels or what the respective dose is supposed to achieve. On social media I often hear the argument that RDA was set to prevent a deficiency, but optimal levels for health may require bigger doses. Blood levels of 50-60 mcg/dl are mentioned, sometimes referring to African tribes near the equator who get a lot of sun exposure daily. Can you give any insight about how and why RDA dosage is established?

Can you comment on the Recent ORFAN study in the UK.(Ref LANCET article "Inflammatory risk and cardiovascular events in patients without obstructive coronary artery disease: the ORFAN multicentre, longitudinal cohort study")?. I appreciate that this does not relate to this video ,however, it appears to be a much more accurate predictor of risk than CCTA, calcium score etc. This applies to both people with CAD and those without CAD (as detected by CCTA). The new study is based on detecting arterial inflammation via the status of fat surrounding Coronary arteries which is a greater predictor of risk than Calcium scores and percentage of arterial blockage.

Hello Gil. I am one of your best fans...really. But your video on Vitamin D, adequate levels and the RDA´s, I feel is way, way off base. As an armchair researcher for many years, especially on Vitamin D, I can only suggest to look at the writings of Dr. Michael Holick, William B. Grant and a host of others that can be seen at the Grassroots Health Nutrient Research Institute. Also, the COVID/Vitamin D studies are far more robust and telling than you seemed to suggest. Anyway, still a great fan and your work and contributions to a balanced view on all things health, so much appreciated. Take good care...

My doctors put me on 5000?

What you think about creatin?

I take vegan D3, and it comes from tomato´s skin I think.

Really appreciated this. My husband and I eat a mostly vegan diet, so we supplement, but I don't want to overdo it.

I'm sure you have no shortage of episode ideas, but I would dearly love a deep dive into supplements for mental health. I take algae oil, vitamin D, and methyl folate all on the recommendations of psychiatrists I've seen over the years. My husband takes the algae oil because of a family history of dementia. Every time I see a video on fish oil, it's addressing heart health rather than mood disorders or dementia

I have a d3 supplement that says it's equivalent to 4000iu and then says that amounts to 2000% of the NRV. How can that be?

You said that there's no evidence that vitamin K2 should be taken alongside vitamin D, but what about this meta analysis that says the opposite?
"The combination effect of vitamin K and vitamin D on human bone quality: a meta-analysis of randomized controlled trials"?

I recently started researching the nutrition topic (a little more than the casual "Avocados are good for you because the good fat" kind of stuff) and came across many contradicting opinions, so I got confused as nutrition used to be "this guy says this, the other guy says the opposite, coffee is good, coffee is bad, carnivore good carnivore bad, oil good, oil bad" and what not. Then I found Plant Chompers and then your channel and I was so relieved, that there is actual research on these topics, actual answers, an actual scientific consensus, also of course stuff that is currently unclear, but at least I can come to your channel, with the good feeling I am not hearing "just my favorites guy opinion". Thanks for your work, much appreciated.

Thank you for your trusted valuable unbiased information. This type of information for lay people is difficult to vet out.

I take D3 because there are studies that show slower tumor growth for patients with Prostate cancer who supplement with Vitamin D.

Love the channel, and I am sorry to bother you with yet another egg question. The past year I have been tackling my weight and overall health and it's been going great. Lost ten kilos of fat and gained two kilos of muscle over the past year.

Next to your channel and others, I enrolled in a special obesity programme at my local hospital. It's all lead by trained dieticians, psychologists, and physiologists. Very legit. All of the information I got there was confirmed by my other sources.

One weird bit of advice they gave: limit egg intake to roughly six per week. I had some issue with this because most advice I found, including on this channel, was a lot more nuanced.

The programme concluded this week and I had asked whether they could revisit and give further information on the six eggs thing. In conclusion they gave two big reasons to limit egg intake: environmental impact is the first, which is fair but of no importance to me. The second is apparently a link between high egg intake and risk of diabetes. This seems utterly bizarre to me.

Can you shed some light on this? Is this perhaps a case of a study looking at egg intake of all kinds (such as mayonnaise and pastries)? I am having a very hard time making sense of this supposed correlation, but on the other hand it was literally said to me at the hospital.

The vitamin D here isn't as cheap as yours is, especially the type that comes in oil droplets, so I'm happy to hear that the tablet kind is fine too.

My biggest shock today was hearing that 4000 IUs is the upper limit before being considered too much. I was absolutely expecting something like 20,000, or maybe 10,000 IUs being too much. I have been taking 5,000 tablets because I live in a cold dark place for 5 months of the year. Sometimes I take two of them daily. I guess I will be considering getting the lower dosages instead.

Very thorough as usual. I supplement with Vitamin D along with Magnesium as I suffer from A-fib and it seems to reduce my heart incidents (but that's purely anecdotal) and also Zinc due to the fact I exercise a lot (namely resistance training) and perspire enormously. I was told that Zinc is a mineral that is not easily replaced through nutrition and is vital to muscle hypertrophy.

400ius seriously? Why don't you say how many IUs of D3 are made in our body after just 20 minutes of sun exposure!?

If you live in Canada- yes you are low. Go supplemeny

we wait interview with Greger of nutrition facts

Thank you for the informative video.

Most YT PhD nutritionist touts the cofactors needed with Vital -D ⁉️ Serum blood test based on last meal only

I wish i knew it doesnt really help black people much before buying

Can you or have you done a show on creatine?

I love these videos. I wonder if we have enough trials on collagen now to have a video on that.

Soo my lp(a) is over 600.. i take vit d, but lp(a) and artial calcification is a real consern. Since vit d also increase calcium in the blood wouldnt it be a "safe" bet to combo with K2..?? Even tho zero evidence 😂😂

Great video, I'll just add that vegan D3 from lichen has made its way into many supplements so vegans can easily get animal free D3 as well.

Megadoses of B vitamins, especially B12, are common in pre-workouts, energy drinks, and supplements. It would be very interesting to hear about the safety or advisablility.

I always feel worse when I supplement with D3.

Great video, thanks!

Would love to hear your thoughts on magnesium, looking forward to that deep dive!

Good video. I would have liked you adding the info though that vitamin d production in northern countries is just too insufficient in most cases since you cant even produce vit D for half a year through sunlight. So I could be wrong but wouldnt be advisable to make a general recommendation to those volks to supplement it?