101–110 of 304 posts
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Cod liver oil, as well as the low-dose supplements, can prevent severe deficiency. No food source has enough Vitamin D to get to a healthy level however. If you cannot get sun, get a daily 4000 IU supplement.
Harvard Medical says that dosage is potentially unsafe: https://www.health.harvard.edu/staying-healthy/taking-too-mu...
Earlier quoted context omitted.
Cod liver oil, as well as the low-dose supplements, can prevent severe deficiency. No food source has enough Vitamin D to get to a healthy level however. If you cannot get sun, get a daily 4000 IU supplement.
Harvard Medical says that dosage is potentially unsafe: https://www.health.harvard.edu/staying-healthy/taking-too-mu...
Earlier quoted context omitted.
A psychiatrist I saw multiple years ago told me to start taking Vitamin D. I went more or less blindly with 5,000 IU after reading some internet articles. I got my blood checked last year and decided I should probably actually know if I'm doing too much or too little. I was within 5% of the middle of the healthy range for vitamin D levels. For reference, 5,000 IU is >800% the FDA daily recommended value. People with…
> For reference, 5,000 IU is >800% the FDA daily recommended value. Unfortunately the daily recommended value was established erroneously and should be much higher. Many research papers mention this. For example: > The Institute of Medicine recommendation for adults younger than 70 years of age is 600 IU of vitamin D daily. We are told that this would achieve a level of 50 nmol/L in greater than 97.5% of individuals.…
Is there any evidence multivitamins are harmful (not just that there's no proof they help improve health?) It's because of stuff like this I take one. Maybe I'm wasting money, but absent a harm I feel it's worth it to hedge my bets.
Men do have to worry about retaining too much iron. Women before menopause typically don't have to worry as they lose a bit of blood every month. https://www.winchesterhospital.org/health-library/article?id...
I take Floradix, which is a German-made liquid made from vegetables and yeast. It has probably saved my life, because without it I become lethargic then severely depressed.
I joke that I'm a vampire and it is my human blood substitute that I take so I don't have to feed on people.
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I read Michael Holick's book (can't find it at the moment) he was the guy who discovered the circulating form of vitamin D.. IIRC you get vitamin D from the sun in rather large quantities. Just 15 minutes per day with only your face and hands exposed with the sun up at 45 degrees or more will be enough. I'm sure my data is not accurate, but it's in the ballpark. He has tables that depend on how dark your skin is and…
Does one need exposure to direct sunlight, or sunlight coming via glass windows works?
Earlier quoted context omitted.
> For reference, 5,000 IU is >800% the FDA daily recommended value. Unfortunately the daily recommended value was established erroneously and should be much higher. Many research papers mention this. For example: > The Institute of Medicine recommendation for adults younger than 70 years of age is 600 IU of vitamin D daily. We are told that this would achieve a level of 50 nmol/L in greater than 97.5% of individuals.…
On the other hand, there's downsides with too much Vitamin D, like hypercalcuria and the risk of kidney stones from that: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5872784/
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To be fair: It isn't just folks with indoor jobs and hobbies. I've discussed this with my doctor after being severely low on vitamin D. It caused physical pain. I'm far enough north that it is impossible to get the sunlight needed during the winter. I still have days, but they are short without strong sun - not to mention that it is too cold to go without a jacket. So, supplements at least during the winter. During t…
Sunlight exposure is also bad for you; taking it orally is the way to go for most people. As pointed out upthread, most supplements are hilariously low-dose. I take 20k IU, 3 times per week. (most supplements are like 1000IU per pill, but 3000IU pills can be found)
Earlier quoted context omitted.
> For reference, 5,000 IU is >800% the FDA daily recommended value. Unfortunately the daily recommended value was established erroneously and should be much higher. Many research papers mention this. For example: > The Institute of Medicine recommendation for adults younger than 70 years of age is 600 IU of vitamin D daily. We are told that this would achieve a level of 50 nmol/L in greater than 97.5% of individuals.…
On the other hand, there's downsides with too much Vitamin D, like hypercalcuria and the risk of kidney stones from that: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5872784/
Earlier quoted context omitted.
To be fair: It isn't just folks with indoor jobs and hobbies. I've discussed this with my doctor after being severely low on vitamin D. It caused physical pain. I'm far enough north that it is impossible to get the sunlight needed during the winter. I still have days, but they are short without strong sun - not to mention that it is too cold to go without a jacket. So, supplements at least during the winter. During t…
Sunlight exposure is also bad for you; taking it orally is the way to go for most people. As pointed out upthread, most supplements are hilariously low-dose. I take 20k IU, 3 times per week. (most supplements are like 1000IU per pill, but 3000IU pills can be found)
Assuming 'linear no-threshold'? I find that pretty suspect.
Outside extreme deficiencies though, I’m not sure that the band isn’t relatively large. But it is documented that D supplements for people with low levels of D does seem to reduce the incidence of pulmonary infections in general. There was a good paper on the subject published last December in Lancet (IIRC — i failed to save it in Zotero). So even before COVID-19 became a concern I upped my daily dose.