The present invention provides a body weight gain suppressing composition including an α-glucosidase activity inhibitor component, preferably a component derived from at least one plant selected from the group consisting of Salacia genus plants, touchi and mulberry, and a lipid synthesis inhibitor component, preferably, at least one selected from the group consisting of soybean peptide, marine animal peptide, and sesame lignin, and also provides a food product including the composition.
