Vitamin B1 (thiamine HCl) — answers to vitamin B1, thiamine
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A synthetic form of thiamine, a water-soluble B vitamin involved in converting food into cellular energy.
Why it’s used
Taken to meet daily thiamine needs or address a diagnosed deficiency.
What the evidence is for
correcting thiamine deficiency and supporting normal energy metabolism.
What the evidence says
NIH ODS confirms thiamine is essential and that deficiency causes well-documented conditions such as beriberi, correctable by supplementation. Evidence for benefits beyond meeting normal requirements is limited.
Dose studied
1.1–1.2 mg — adult RDA, per NIH ODS.
Context
NIH ODS lists the adult RDA at about 1.1 to 1.2 mg per day; no tolerable upper intake level has been set because toxicity from oral intake is not well documented.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.