Provided is an enteral nutrient which, although containing 5 a soy protein as a protein source, does not cause a rapid increase in viscosity and inhomogeneity ascribed to the aggregation or thermal denaturation occurring by heating for sterilization or formulation step and is thus stable, and shows a good taste without giving the sense of bitterness and coarseness on the throat inherent to soybean. In the enteral nutrient of the acidic 10 type which is formulated with a protein, a fat, a carbohydrate, a vitamin, a mineral and a food fiber and the pH ranges 3 to 4, a soy protein containing 20 to 40% of a peptide fraction whose molecular weight is less than 6000 is formulated at 5 to 65% of total proteins.