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American Journal of Clinical Nutrition, Vol 48, 852-858, Copyright © 1988 by The American Society for Clinical Nutrition, Inc

REVIEW ARTICLES

Vitamin B-12: plant sources, requirements, and assay

V Herbert
Mt Sinai School of Medicine, New York, New York.

Vitamin B-12 is of singular interest in any discussion of vegetarian diets because this vitamin is not found in plant foods as are other vitamins. Many of the papers in the literature give values of vitamin B- 12 in food that are false because as much as 80% of the activity by this method is due to inactive analogues of vitamin B-12.


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Copyright © 1988 by The American Society for Nutrition