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Text File  |  1992-12-06  |  1KB  |  37 lines
  1.  
  2.  
  3.           Vitamin B1
  4.  
  5.  
  6.                 U.S. Recommended Daily Allowances
  7.  
  8.          Infants     Children        Adults and           Pregnant or
  9.  
  10.          (0-12 mo.)  (1-3 years)     Children 4 Years +   Nursing Women
  11.  
  12.          0.5 mg       0.7 mg             1.5 mg                 1.7 mg
  13.  
  14.  
  15.                (The U.S. RDA amounts are sufficient to meet the needs
  16.           of practically all healthy people.)
  17.  
  18.                Thiamin (vitamin B1) is a water-soluble vitamin that
  19.           was the first identified member of the TB complex group.
  20.  
  21.                Functions: Helps convert carbohydrates to energy; aids
  22.           in nerve cell functioning.
  23.  
  24.                Sources: Brewer's yeast; lean cuts of pork;
  25.           whole-grain or enriched cereal grain products; legumes;
  26.           liver, heart and kidneys; nuts and seeds.
  27.  
  28.                Deficiency: Thiamin deficiency causes beriberi, a
  29.           disease whose symptoms include anorexia, weakness, lack of
  30.           coordination, muscle wasting, paralysis of the eye muscles,
  31.           mental confusion, rapid heartbeat, edema, and enlarged
  32.           heart. Deficiency is sometimes seen in this country in
  33.           people with alcoholism and certain medical conditions.
  34.  
  35.               Excess: High intakes appear nontoxic since excess
  36.           thiamin is easily excreted by the kidneys.
  37.