How Amino Acid Balance Supports Energy and Performance Introduction Energy is not just about calories — it is about cellular efficiency. Many people assume fatigue or low performance comes only from insufficient calorie intake. However, optimal body function depends on something more fundamental: proper amino acid balance. After 40, metabolic efficiency may naturally decline. The body becomes less effective at utilizing nutrients, which can impact energy, recovery, and physical performance. This is where balanced essential amino acids become relevant. The Role of Amino Acids in Cellular Energy Essential amino acids are the building blocks of protein. They support: Tissue repair Enzyme production Hormonal function Metabolic regulation Without a complete supply of all nine essential amino acids, the body may struggle to maintain optimal metabolic processes. Energy is not just about fuel — i...