This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Proteins, Fats, Rich Sources, Subject name: Social & Preventive Medicine
[{'content': 'Best indicator of protein quality:- \nSelect and explain. \nA. DIAAS, B. Amino acid score, C. PDCAAS, D. Protein efficiency ratio', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Best indicator of protein quality: DIAAS (Digestible indispensable amino acid scores) > PDCAAS (Protein digestibility-corrected amino acid score) >NPU (Net protein utilization). DIAAS =100 x . NPU = 100 x (Nitrogen retained by the body) / (Nitrogen intake) Other indicators: Amino acid score, Biological value, Protein efficiency ratio. Amino acid score = 100x (mg of amino acid per gm of test protein)/(mg of same amino acid per gm of reference protein) Also remember, protein quantity is measured by protein energy ratio = 100 x energy from protein / total energy in diet.', 'role': 'assistant'}]