Requirement of vitamin B12 per day for adults is:: (A) 1 mcg, (B) 3 mcg, (C) 5 mcg, (D) 7 mcg
Answer is A. Requirement of vitamin B12 per day Healthy adults 1 mcg Pregnancy 1.2 mcg Lactation 1.5 mcg children 0.2 mcg Ref: Park 22nd edition, page 575.