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Vitamin B6 benefit
Vitamin B6 benefit


Vitamin B6 source
Vitamin B6 source


Definition:

Vitamin B6 is a water-soluble vitamin. Water-soluble vitamins dissolve in water. The body cannot store them. Leftover amounts of the vitamin leave the body through the urine. That means you need a continuous supply of such vitamins in your diet.



Alternative Names:

Pyridoxine



Function:

Vitamin B6 helps the immune system produce antibodies . Antibodies are needed to fight many diseases. Vitamin B6 helps maintain normal nerve function and form red blood cells. The body uses it to help break down proteins . The more protein you eat, the more vitamin B6 you need.



Food Sources:

Vitamin B6 is found in beans, nuts, legumes, eggs, meats, fish, whole grains, and fortified breads and cereals.



Side Effects:

Large doses of vitamin B6 can cause neurological disorders and numbness . Deficiency of this vitamin can cause mouth and tongue sores, irritability, confusion, and depression. (Vitamin B6 deficiency is not common in the United States.)



Recommendations:

The Food and Nutrition Board at the Institute of Medicine recommends the following dietary intake for vitamin B6:

Infants

  • 0 - 6 months: 0.1 milligrams per day (mg/day)
  • 7 - 12 months: 0.3 mg/day

Children

  • 1 - 3 years: 0.5 mg/day
  • 4 - 8 years: 0.6 mg/day
  • 9 - 13 years: 1.0 mg/day

Adolescents and Adults

  • Males age 14 to 50 years: 1.3 mg/day
  • Males over 50 years: 1.7 mg/day
  • Females age 14 to 18 years: 1.2 mg/day
  • Females age 19 to 50 years: 1.3 mg/day
  • Females over 50 years: 1.5 mg/day

The best way to get the daily requirement of essential vitamins is to eat a balanced diet that contains a variety of foods from the food guide pyramid.

Specific recommendations depend on age, gender, and other factors (such as pregnancy). Women who are pregnant or producing breast milk (lactating) need higher amounts. Ask your health care provider which amount is best for you.



References:

Institute of Medicine. Food and Nutrition Board. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, PantothenicAcid, Biotin, and Choline. National Academy Press, Washington, DC, 1998.

Hamrick I, Counts SH. Vitamin and mineral supplements. Wellness and Prevention. December 2008:35(4);729-747.

Rakel D, ed. Integrative Medicine. 2nd ed. Philadelphia, Pa: Saunders Elsevier; 2007.

Mason JB. Vitamins, trace minerals, and other micronutrients. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 237.




Review Date: 3/7/2009
Reviewed By: Linda Vorvick, MD, Family Physician, Seattle Site Coordinator, Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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Wentworth-Douglass Hospital
789 Central Avenue, Dover, NH 03820
Phone: (603) 742-5252
Toll free: 1 (877) 201-7100