It is the most abundant free amino acid in the human body and the main energy source of the brain. It promotes muscle protein synthesis and muscle cell growth, thereby improving muscle strength and quality.

In addition, glutamine can also eliminate brain fatigue, overcome brain hypoxia, promote recovery after illness and injury, and enhance immunity. When the body consumes a lot of energy or is injured or sick, the level of glutamine in the human body drops sharply and needs to be replenished in time. Otherwise, the body will decompose muscle protein, resulting in a decrease in muscle quality and immunity.

Muscle cells have the strongest ability to absorb glutamine, and daily intake can increase the amount stored in the muscles. When muscle cells absorb glutamine, they also absorb water and glycogen. Therefore, the expansion of the muscles will increase accordingly, which is its muscle-building effect.