Provided is an enteral nutrient which although containing soy protein as a protein source, does not show a rapid increase in viscosity or cause non-homogeneity due to aggregation or thermal denaturation even if undergoing disinfection or during preparation, and therefore is stable, and also has a good flavor without providing a bitter taste specific to soybeans or non smooth texture. The enteral nutrient is an acidic enteral nutrient containing proteins, fats, carbohydrates, vitamins, minerals, and dietary fibers, and having a pH ranging from 3 to 4, wherein as the proteins, soy protein containing 20 to 40% of a peptide fraction having a molecular weight less than 6000 is contained in an amount of 5 to 65% of the total proteins.