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Branched Chain Amino Acids (BCAAs) are three of the nine Essential Amino Acids with similar structures that beneficially influence the muscles. As they cannot be naturally produced by our body, they must be obtained through protein-rich foods (such as eggs or meat) or supplementation.

BCAAs are essential in supporting muscle recovery and function as they help stimulate protein synthesis resulting in muscle growth, as well as helping boosts energy levels and fatigue.

The three BCAAs are Leucine, Isoleucine, and Valine:

- Leucine is considered to be the most important when it comes to muscle growth as it activates a certain pathway in the body that stimulates muscle protein synthesis, which is the process of making muscle. Leucine is also responsible for the regulation of blood-sugar levels, the growth, and repair of tissues in the skin. It's a strong potentiator to Human Growth Hormone (HGH). It can also help in healing wounds, regulating energy, and assists in preventing the breakdown of muscle tissue.

- Isoleucine promotes muscle recovery, regulates the blood sugar levels and stimulates HGH release. But isoleucine holds its own in terms of wound healing. It helps in the formation of haemoglobin and is strongly involved in the formation of blood clots, the body's primary defence against infection through open wounds.

- Valine helps the repair and growth of muscle tissue, as commonly attributed to BCAAs. It maintains the nitrogen balance and preserves the use of glucose.