National Institutes of Health
- The primary NIH organization for research on B Vitamins is the NIH Office of Dietary Supplements
A service of the U.S. National Library of Medicine 
National Institutes of Health
B Vitamins
The B vitamins are
- B1 (thiamine)
- B2 (riboflavin)
- B3 (niacin)
- B5 (pantothenic acid)
- B6
- B7 (biotin)
- B12
- Folic acid
These vitamins help the process your body uses to get or make energy from the food you eat. They also help form red blood cells. You can get B vitamins from proteins such as fish, poultry, meat, eggs, and dairy products. Leafy green vegetables, beans, and peas also have B vitamins. Many cereals and some breads have added B vitamins.
Not getting enough of certain B vitamins can cause diseases. A lack of B12 or B6 can cause anemia.
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Start Here
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Vitamin B12(National Institutes of Health, Office of Dietary Supplements)
- Also available in Spanish
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Vitamin B6(National Institutes of Health, Office of Dietary Supplements)
- Also available in Spanish
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Vitamin B12
The top row in the table of contents box contains the following groups:
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Learn More
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Multimedia & Cool Tools
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For group Multimedia & Cool Tools
The bottom row in the table of contents box contains the following groups:
Research
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Reference Shelf
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For You
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For group Reference Shelf
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Diagnosis/Symptoms
- Homocysteine Test(American Association for Clinical Chemistry)
- Methylmalonic Acid(American Association for Clinical Chemistry)
- Vitamin B12 and Folate Test(American Association for Clinical Chemistry)
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Specific Conditions
- Niacin(Merck & Co., Inc.)
- Riboflavin(Merck & Co., Inc.)
- Thiamin(Merck & Co., Inc.)
- Vitamin B-12(American Academy of Family Physicians)
- Also available in Spanish
- Vitamin B6(Merck & Co., Inc.)
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Related Issues
- Homocysteine, Folic Acid and Cardiovascular Disease(American Heart Association)
- Niacin to Boost Your HDL "Good" Cholesterol(Mayo Foundation for Medical Education and Research)
- Vitamin B Complex(American Cancer Society)
- Vitamin B-12 and Depression: Are They Related?(Mayo Foundation for Medical Education and Research)
- Vitamin B12 and Folate Deficiency(American Association for Clinical Chemistry)
- Vitamin Deficiency Anemia(Mayo Foundation for Medical Education and Research)
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Games
- Vitamin B1(Nobel Foundation)
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Clinical Trials
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ClinicalTrials.gov: Biotin(National Institutes of Health)
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ClinicalTrials.gov: Niacin(National Institutes of Health)
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ClinicalTrials.gov: Riboflavin(National Institutes of Health)
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ClinicalTrials.gov: Thiamine(National Institutes of Health)
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ClinicalTrials.gov: Vitamin B Complex(National Institutes of Health)
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ClinicalTrials.gov: Biotin
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Journal Articles
References and abstracts from MEDLINE/PubMed (National Library of Medicine)
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Directories
- Find a Registered Dietitian(Academy of Nutrition and Dietetics)
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Organizations
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Patient Handouts
- Anemia - B12 deficiency
- Also available in Spanish
- Beriberi
- Also available in Spanish
- Megaloblastic anemia
- Also available in Spanish
- Niacin
- Also available in Spanish
- Pantothenic acid and biotin
- Also available in Spanish
- Pellagra
- Also available in Spanish
- Riboflavin
- Also available in Spanish
- Thiamine
- Also available in Spanish
- Vitamin B12
- Also available in Spanish
- Vitamin B6
- Also available in Spanish
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You may also be interested in these related encyclopedia pages:
MEDICAL ENCYCLOPEDIA
