Vitamin B1

The A-B-C's of Vitamin Supplements

Susan Spinasanta
Medical Writer
SpineUniverse
Desert Hot Springs, CA
 

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Vitamin B1 Basics

Beriberi, a disease of the nervous system, is caused by a deficiency of B1, also known as Thiamine. Vitamin B1 is important for the following bodily functions: breathing, carbohydrate metabolism, enhanced circulation, and assists in producing hydrochloric acid - key for proper digestion.

Alcoholics are at risk for beriberi because excessive consumption depletes the body of thiamine (B1). Other known side effects from a lack of Vitamin B1 include: constipation (poor digestion), edema (swelling), heart changes (even heart failure), memory difficulties, labored breathing, nervousness, and numbness in the extremities (hands and feet).

Dosage Guidelines

Vitamin B1 can be taken in the following dosages with water after eating:

  • Adults - between 1.1 mg and 1.5 mg
  • Although women who are pregnant or nursing can take Vitamin B1, it is suggested the dosage be discussed with a medical professional first. Always consult with a medical professional prior to giving thiamine to a child.

Sources

Vitamin B1 is available in table, capsule and chewable form. It is also available in most multivitamins or simply labeled B-complex. Vitamin B1 is labeled two ways: as thiamine mononitrate and thiamine hydrochloride.

This is an easy vitamin to find from everyday food sources. Brown rice, egg yolks, soymilk, beans, brewer's yeast, peanuts, whole grains, most nuts, kelp, and some vegetables such as asparagus and Brussel sprouts.

Cautions

Vitamin B1 is basically nontoxic.

Last Updated: 02/06/2004

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