Riboflavin

Chemical Name:Vitamin B2

Description:Riboflavin is a water-soluble vitamin that is not sensitive to heat yet sensitive to light. The crystals of this vitamin are a beautiful greenish-yellow color. Riboflavin is an important component to cellular respiration since it takes oxygen from the cells with the help of other enzymes. Vitamin B2 plays a part in the Krebb's cycle (a biological pathway that converts glucose (sugar) into energy). Free radicals are interfered with in the presence of riboflavin and an enzyme termed gluathione reductase. Since this vitamin in scarce in most foods, it is best to supplement the diet to insure an adequate amount.

Absorption/Storage:The walls of the small intestine absorb riboflavin without a problem. This vitamin is then transported to all parts of the body depending on where it is needed via the bloodstream. The excess amounts are excreted through urination.

Dosage/Toxicity:The Recommended Dietary Allowance (RDA) suggest the following amounts: newborns-6 months 0.4mg, infants 6 months-1 year 0.5mg, children 1-3 years 0.8mg, children 4-6 years 1.1mg, children 7-10 years 1.2 mg, males 11-14 years 1.5mg, males 15-18 years 1.8mg, males 19-50 years 1.7mg, males 51+ years 1.4mg, females 11-50 years 1.3mg, females 51+ years 1.2mg, Lactating women (1st 6 months) 1.8mg, Lactating women (2nd 6 months) 1.7mg. Before taking more than 10 times the RDA, you should consult with a physician. Large doses of riboflavin could result in a high urinary loss of other B vitamins.

Deficiency:A condition known as Cheliosis is caused by a riboflavin deficiency. This is characterized by a cracking of the skin, especially around the eyes. It also causes as sensitivity to light causing the eyes to close and some people sneeze when exposed to light. Other symptoms of a vitamin B2 deficiency are retarded growth, digestive complications, impaired lactation, dizziness, and the inability to urinate.

Common UseCataracts may be prevented by the use of riboflavin. Those suffering from eczema may also find some relief. Traditionally, vitamin B2 is been used to treat hyperthyroidism, fever, and also used to fight free radicals, cancer and anemia.

Food Sources:Milk, enriched breads and cereals and liver.

Precautions:Consult a physician if pregnant, symptoms of nausea, diarrhea, or dizziness last more than a week, or if new symptoms appear.

Scientific References: Groff, J., Gropper, S., and Hunt, S. (1995). Advanced Nutrition and Human Metabolism. St. Paul Minnesota: West Publishing Company. Gropper and Hamilton. (1987). The Biochemistry of Human Nutrition. St. Paul, Minnesota: West Publishing Company. Kirschmann, G. and Kirschmann, J. (1996). Nutrition Almanac. New York, New York: McGraw Hill. Murray, M., (1996) Encyclopedia of Nutritional Supplements. Unites States of America: Prima Publishing. Murray, M. and Pizzorno, J., (1998) Encyclopedia of Natural Medicine. United States of America: Prima Publishing. National Research Council. (1989). Recommended Dietary Allowance. Washington D.C.: National Academy Press. Null, G., (1998) The Complete Encyclopedia of Natural Healing. New York, New York: Kensington Publishing Corp.