Recommended dietary intakes (RDI) of vitamin B-12 in humans.
Extensive evidence is presented that 2 micrograms (1.5 nmol) of cobalamin daily will not only maintain adequate vitamin B-12 nutriture but also a substantial reserve body pool in normal persons. Recommendations appropriate to this extensive evidence are presented.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007408:Intestinal Absorption; D007774:Lactation; D008297:Male; D008875:Middle Aged; D009751:Nutritional Requirements; D009753:Nutritive Value; D011247:Pregnancy; D014805:Vitamin B 12 / Q000008:administration & dosage* / Q000378:metabolism
D014805:Vitamin B 12