BCAA, known as branched-chain amino acids, is one of the essential amino acids that the human body cannot synthesize by itself. Including leucine, isoleucine and valine, accounting for more than 35% of protein.

BCAA is a common sports nutrition, which is often used by athletes, fitness enthusiasts and people who need to supplement amino acids every day. Its functions mainly include the following aspects:

1. Promote muscle growth: BCAA is an essential amino acid for muscle synthesis, which can help muscle synthesize protein and promote muscle growth.

2. Delaying muscle fatigue: BCAA can block the signal of muscle fatigue, which helps to delay muscle fatigue and improve sports performance.

3. Protect muscles: During strenuous exercise, BCAA can reduce the decomposition of muscle protein, thus protecting muscles from being decomposed.

4. Promote fat burning: BCAA can increase the energy consumption of the body, promote fat burning and reduce fat accumulation.

It should be noted that although BCAA has a positive effect on muscle growth and muscle protection, it has no obvious effect on the health of ordinary people, and excessive intake of BCAA may also cause liver damage. Therefore, before using BCAA, you need to know your physical condition, follow the correct usage and dosage, and suggest consulting a professional doctor or health expert.