intravenous infusions of l-valine ( 600 mumol/min ) , l-isoleucine ( 150 mumol/min ) , l-leucine ( 300 mumol/min ) and a mixture of the three branched-chain amino acids ( 70 % l-leucine , 20 % l-valine , 10 % l-isoleucine ; 270 mumol/min ) were given to four groups of healthy volunteer subjects .
C0002521
branched-chain
C0042285
valine