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
Protein quality assessments is best done by - 
Select and explain. 
A. NPU, B. Biological value, C. Digestibility coefficient, D. Amino acid score
A: NPU
Answer: A: NPU 
Explanation: - the net protein utilisation is considered of more practical value for evaluation of protein because it is the product of biological value and digestibility coefficient divided by 100. - it is the propoion of ingested protein that is retained in the body under specified condition for the maintenance and/or growth of the tissues. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:610 <\p>