IleIsoleucineopen_in_newamino acidIsoleucine is an essential branched-chain amino acid (BCAA) necessary for protein synthesis, muscle repair, and energy regulation. Because the body cannot produce it, this nutrient must be obtained through diet or supplementation to support physical recovery and hemoglobin...$29.99 median price$0.79 per serving$0.68 per 1,000 mg613 mg per serving Show details expand_more