This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Which of the following amino acids is absent in human milk? 
Select and explain. 
A. Glycine, B. Threonine, C. Lysine, D. Leucine
A: Glycine
Answer: A: Glycine 
Explanation: Among the amino acids, glutamic acid is maximum and glycine is absent in human milk. Ref: Nutrition and Child Development, K.E. Elizabeth, 4th edition pg: 17