Guest guest Posted January 30, 2008 Report Share Posted January 30, 2008 I am contemplating taking a supplement, which contains the following: Thiamin- B1-3.0 mg (200%) Riboflavin - B2- 4.25 mg (250%) B6- 4.0 mg (200%) B12- 18 mcg (300%) Biotin- 300mcg (100%) With so many of these B vitamins above the RDA...is that a neuro-toxic issue? Thanks! Amy Quote Link to comment Share on other sites More sharing options...
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