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Although those 100mg numbers seem huge (compared to the 1.5-2 mg in the other product) there's no established toxicity level for most subtypes of vitamin B. And from the little more concrete data that exists for B6, one US institution (NAM/IoM) sets the limit at 100mg/day, although others elsewhere have set it lower, e.g. 10mg/day by the UK's NHS.


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