The commercial availability of L-Valine has allowed nutritionists to balance the amino acid content of swine and poultry feeds, meet the amino acid requirements of their high-yielding livestock without causing an imbalance in other amino acids, and significantly reduce the nitrogen excretion of their livestock through a reduction in dietary protein (Figure 2). Together, L-Valine provides the feed industry with a tool that can meet a variety of economical, nutritional and environmental targets,