Thiamine (Vitamin B1) in Multivitamins

Informational only: This page is not medical advice. Consult a healthcare provider before starting supplements.

Thiamine is a water-soluble B-vitamin essential for converting carbohydrates into energy and for proper nerve and heart function. It plays a central role in the Krebs cycle and is required for synthesis of acetylcholine.

Benefits

  • Essential for carbohydrate metabolism and energy production
  • Supports nerve impulse transmission
  • Required for synthesis of acetylcholine (neurotransmitter)
  • Supports heart muscle function
  • Deficiency causes beriberi and Wernicke encephalopathy

Recommended Daily Value

1.1mg for women, 1.2mg for men

Food Sources

  • Pork (highest source)
  • Whole grains
  • Legumes
  • Nuts and seeds
  • Fortified cereals

Scientific Reference

Bettendorff L. Thiamine. In: Zempleni J et al, eds. Handbook of Vitamins. 2007.

Multivitamins Containing Thiamine (Vitamin B1)

0.9mg
$55
capsule

The most evidence-based daily multivitamin on the market. Every one of its 26 ingredients is backed by human RCTs at the exact dose used in clinical trials — methylated B vitamins, glycinate-form minerals, 200mg hyaluronic acid for skin health, TMG for cognition and exercise, and microencapsulated carotenoids for eye protection. It deliberately excludes Vitamin A and E based on safety research, and consolidates 6–8 separate supplements into one formula.