抄録
1. The interference between L-valine, L-leucine and L-isoleucine during absorption from the intestine was studied both in in vivo and in vitro.
2. These three amino acids have a characteristic competitive action on the absorption mechanism. The interference between other amino acids such as methionine and histidine is not reciprocal.
3. Competition may occur in the earlier stage of absorption and be related to the step of active transportation.