This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: RDA, Nutritional Requirements, Subject name: Social & Preventive Medicine
The energy requirement of an infant, for planning aificial feeding is: 
Select and explain. 
A. 50 kcal per kg body weight, per day, B. 70 kcal per kg body weight, per day, C. 100 kcal per kg body weight, per day, D. 120 kcal per kg body weight, per day
C: 100 kcal per kg body weight, per day
Answer: C: 100 kcal per kg body weight, per day 
Explanation: Aificial Feeding - Principles 1. Energy requirement - 100 kcal per kg body weight, per day. 2. Protein requirement of: Age 0-6 months 2 g per kg body weight per day 6-12 months 1.5 g per kg body weight per day 3. Carbohydrate requirement of 10 g per kg body weight per day. 4. Undiluted boiled and cooled milk to be given after 4 months of age. 5. Feeding frequency of 6-8 times a day in infants, and 5 times a day in older children. 6. Increased calorie demand during illnesses (e.g. fever) should be considered.