Lysine is an essential amino acid vital for protein synthesis, which is foundational for muscle growth. While lysine plays a role in muscle recovery and may influence the release of growth hormones, it's just one of many amino acids required for muscle development. Consuming lysine alone might not lead to significant muscle growth; a balanced intake of all essential amino acids, combined with an appropriate exercise regimen, is crucial. Before taking lysine supplements for muscle growth, consultation with a healthcare professional is recommended.