This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
Additional daily energy requirement during the first six months of a lactating woman is - 
Select and explain. 
A. 350 K calories, B. 450 K calories, C. 550 K calories, D. 600 K calories
D: 600 K calories
Answer: D: 600 K calories 
Explanation: - the energy requirements of women are increased during pregnancy and lactation. - additional 600 kcal daily is needed during first six months of lactation. Reference: Park's textbook of preventive and social medicine, 23rd edition, pg no:633 <\p>