[comrade1234]

Can you get your blood tested for vitamin, mineral, enzyme levels? You don't have to do it very often.

I was borderline low on D and B12, but everything else was normal. So I take B12 and only take D in the winter. I would never take a general vitamin.

There's some people on the internet that advocate taking massive doses of D. But the side effects (short term and long term) are just as nasty as having a deficiency.

Anyway, get your blood tested and only take what's necessary.

[gavinray]

I take 20,000iu of Vitamin D a day (10,000iu morning/night).

You can take quite an amount of Vitamin D safely, an example: "Results of daily oral dosing with up to 60,000iu of vitamin D3 for 2 to 6 years in 3 adult males"

https://pubmed.ncbi.nlm.nih.gov/28012936/

[rapsey]

My blood tests never showed a deficiency in B6, even though it significantly improved every aspect of my life after I started taking it. Magnesium deficiency does not show up in any blood tests either. Not to mention that peoples physiology can be quite different. Some need high levels of one thing while others should not have it.