Poultry diets must provide a balanced profile of essential amino acids to support rapid growth and development. Lysine, methionine, and threonine are among the most critical, as they directly influence muscle protein synthesis and feed conversion ratios. Methionine, in particular, is a limiting amino acid in poultry feed, meaning its deficiency can hinder growth even if other nutrients are abundant. By supplementing with synthetic amino acids, producers can formulate diets that precisely meet the birds' nutritional needs without over-relying on costly protein sources like soybean meal or fishmeal. This not only reduces feed costs but also minimizes nitrogen excretion, contributing to more sustainable farming practices.