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A 43-year-old female asked:

If i'm taking biotin forte with zinc, but i also eat good diet with lots of beans and b vitamin foods- will this cause excess b and zinc to build up?

1 doctor answer1 doctor weighed in
Dr. Randy Baker
Holistic Medicine 41 years experience
No: There is no worry about B vitamins "building up." The only B vitamin that our body stores is B12 and it is non-toxic. The only B vitamin known to be toxic is B6 but one usually has to take over 200 mg/day; it is impossible to get anywhere near that via diet. Zinc toxicity is not known unless one ingests at least 100 mg/day long-term. Diet levels never approach this. So no need to worry.
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Last updated Oct 28, 2016

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