Recenly, I have been using a number of B-complex products, all manufactured by European companies.
I notice that all of them contain amount of niacine /typically 50mg/ that far exceed all other members of the B family, incl. B1, B2, B6, choline, inositol, etc., which are between 1 and 5mg with very few exceptions. This is a bit strange, having also in mind that niacine is almost the only one that can be toxic in high doses. European formulas are also much more conservative /compared to Americans/ in those Bs that are in the mcg range - B12, folic acid.
Seems that Europeans put the stress very much on niacine, while Americans have much more balanced /overdosed?/ B complex products.
Any thoughts on that?