Conditionally essential amino acids

Arginine is classified as a conditionally essential amino acid in humans. While it is generally considered non-essential because the body can usually synthesize it in sufficient quantities, there are circumstances under which the body’s demand for arginine increases beyond its capacity to produce it. These circumstances include periods of rapid growth, illness, and physical trauma or stress. During such times, arginine becomes essential in the diet to meet the body’s increased needs. Arginine plays vital roles in protein synthesis, wound healing, immune function, and the production of nitric oxide, a critical molecule for blood vessel dilation and blood flow. Thus, during periods of stress or illness, dietary intake of arginine becomes crucial for supporting these physiological processes. Problem: Which amino acid is classified as conditionally essential in humans, primarily during periods of illness and stress? A) Glycine B) Arginine C) Leucine D) Tyrosine