Home » Which one of the following amino acids is an essential part of human diet ? Digestive System MCQs Which one of the following amino acids is an essential part of human diet ? February 8, 2022 4 Views Q. Which one of the following amino acids is an essential part of human diet ? A. Glycine B. Phenylalanine C. Serine D. Aspartic acid Answer: Phenylalanine
