The object of the present invention is to provide a composition for food and beverage comprising a hygroscopic powdery material having improved hygroscopicity as well as food and beverage containing the composition. The present invention provides compositions for food and beverage comprising a hygroscopic powdery material and a sesamin-class compound(s), more specifically powdery compositions for food and beverage comprising a hygroscopic powdery material and a sesamin-class compound(s) mixed with each other wherein the hygroscopic powdery material has improved hygroscopicity as well as foods and beverages containing the compositions.本發明係以提供吸濕性粉末原料之吸濕性被改善之含該吸濕性粉末原料之飲食品組成物及含有該組成物之飲食品為目的。含吸濕性粉末原料及芝麻素類之飲食品組成物,若更加特定,係含有混合吸濕性粉末原料及芝麻素類之飲食品粉末組成物,上述吸濕性粉末原料之吸濕性被改善之上述組成物,以及含有上述組成物之飲食品。