This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Breast milk is deficient in which vitamin 
Select and explain. 
A. Vitamin A, B. Vitamin B1, C. Vitamin K, D. Vitamin C
C: Vitamin K
Answer: C: Vitamin K 
Explanation: Ans. is 'c' i.e., Vitamin K Exclusive breasfed infants may have following deficiencies - Vit B12 (if mother is strict vegetarian) Fluoride Vit D Vit K "Breastfed infants are protected as the breastmilk contains adequate amounts of vitamin C, except when the mother is deficient in Vitamin C".