What is the recommended dietary allowance (RDA) for vitamin B-1?

Updated: Jun 01, 2020
  • Author: Mark Rosenbloom, MD, MBA; Chief Editor: Michael A Miller, MD  more...
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Vitamin B-1 (ie, thiamine) is found in organ meats, yeast, eggs, and green, leafy vegetables. Vitamin B-1 supplements usually contain 50-500 mg of vitamin B-1 per tablet. This vitamin is a cofactor for pyruvate dehydrogenase in the Krebs cycle. The RDA is 1.5 mg (0.7 mg for children aged 1-4 y).

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