Amino acids and ketoacids offer muscle support in protein

Physiological and pathological roles of branched-chain amino acids in the regulation of protein and energy metabolism and neurological functions - ScienceDirect

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What is the difference between amino acid and ketoacid? - Quora

Amino Acid Homeostasis in Mammalian Cells with a Focus on Amino Acid Transport - The Journal of Nutrition

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Amino acids and ketoacids offer muscle support in protein-restricted patients