Comment by AlexanderNull | Hacker News Reader

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Comment by AlexanderNull | Hacker News Reader

AlexanderNull·

Why are there so many studies looking at vitamin D and bone health? Vitamin D levels affect expression of over 400 genes in the human body, make a difference in cancer survival and are strongly inversely correlated with all cause mortality (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4103214/ https://www.mdedge.com/psychiatry/article/66349/depression/v... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6201256/). Does the lay person really only associate vitamin D with bones?

Assessment of single specific claims has merits.

Essential vitamins are clearly important to multiple health and fitness pathways. But identifying which specific pathways, results, and mechanics has value.

Bones and SAD.

Yes

Time to start taking vitamin D

The only supplement that the NHS recommends is taken by the bulk of healthy adults in the UK - especially during winter months.

You would probably benefit more from being out in the sun than from taking vitamin D supplements.

Yeah, and possibly die of malignant melanoma. At the same time, no sun exposure is also a risk of melanoma - not sure if due to vitamin D or more possibly - due to the hormetic effect of mild skin DNA damage.

A little daily sun exposure won't significantly increase your risk of melanoma (unless you have a rare genetic disorder).

True, but you get enough vitamin D - especially not during the winter.

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