Provided are a composition for inhibiting alcohol absorption, use of the composition for inhibiting alcohol absorption, and a method for inhibiting alcohol absorption. It was found that a heat-treated product of a plant-derived peptide has a very high alcohol absorption inhibitory effect. The present invention provides a composition for inhibiting alcohol absorption containing the heat-treated product of the plant-derived peptide as an active ingredient, use of the heat-treated product of the plant-derived peptide for inhibiting alcohol absorption, and a method of inhibiting alcohol absorption by using the heat-treated product of the plant-derived peptide.
