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You are here : 3-RX.com > Medical Encyclopedia > Diet and Nutrition > Vitamin B1: Functions and Sources
      Category : Health Centers > Food, Nutrition, and Metabolism

Vitamin B1

Alternate Names : Thiamine

Vitamin B1 | Functions and Sources

What food source is the nutrient found in?

Thiamine is found in foods such as:

  • meats (pork and liver)
  • brewer's yeast
  • soybeans
  • peanuts
  • dried beans
  • whole or enriched breads, grains, and cereals
  • Enriched products add back the vitamins that are lost when grains are processed. Thiamine is lost in cooking due to heat. The thiamine contents of some foods are:

  • beef liver, braised (3 ounces) = 9.2 milligrams (mg)
  • sunflower seeds (3.5 ounces) = 1.96 mg
  • pinto beans (3.5 ounces) = 0.84 mg
  • enriched rice, cooked (1/2 cup) = 0.2 mg
  • How does the nutrient affect the body?

    Thiamine works with the other B vitamins to change protein, carbohydrate, and fat to energy. It is especially vital for changing carbohydrates to energy. It is a key factor in the healthy functioning of all the body's cells, especially the nerves.

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    Vitamin B1: Overview & Description


    Author: Kimberly Tessmer, RD, LD
    Reviewer: Kathleen A. MacNaughton, RN, BSN
    Date Reviewed: 09/26/02

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