RDA for Men51–70 years2.4 μg/day of vitamin B12*
> 70 years2.4 μg/day of vitamin B12*
RDA for Women51–70 years2.4 μg/day of vitamin B12*
> 70 years2.4 μg/day of vitamin B12*

From: 9, Vitamin B12

Cover of Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline
Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline.
Institute of Medicine (US) Standing Committee on the Scientific Evaluation of Dietary Reference Intakes and its Panel on Folate, Other B Vitamins, and Choline.
Washington (DC): National Academies Press (US); 1998.
Copyright © 1998, National Academy of Sciences.

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.