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
Egg is ideal protein because it has - 
Select and explain. 
A. High cholesterol, B. High protein per 100 gm, C. High biological efficiency and NPU, D. No limiting amino acid
C: High biological efficiency and NPU
Answer: C: High biological efficiency and NPU 
Explanation: - egg is considered to be the best among food proteins because of their high biological value and digestibility. - it is considered as the reference protein. Reference : Park's textbook of preventive and social medicine, 25th edition, pg no:687<\p>