A dry composition for oral ingestion characterized by comprising as an active ingredient a gas-releasing substance which releases gas by soak with water, and further comprising a gel base in an amount sufficient for gel formation； a gel composition for oral ingestion formed by adding water or a liquid diluent to the dry compound when taking； and a mixed feed obtainable by mixing the gel composition with a feed, are disclosed.本發明係揭示以含與水接觸時釋出氣體之氣體釋出性物質為有效成份，並且含可形成凝膠的量之凝膠基劑為特徵之乾燥形態經口攝取用組成物，對於乾燥形態之上述經口攝取用組成物，於服用時，添加水或液狀稀釋劑而形成為特徵之凝膠狀經口攝取用組成物，以及混合上述之凝膠狀經口攝取用組成物與飼料所製造之混合飼料。
