Abstract: A liquid food composition that can be conveniently ingested or given by tube feeding, and can prevent gastroesophageal reflux disease, vomiting, esophagitis, pneumonia, asphyxiation, diarrhea, etc., and can increase feeling of fullness through improvement in the solidification ratio of the composition under the endogastric condition is provided. Since the liquid food composition of the present invention shows superior solidification ratio under the endogastric acidic condition, it can more effectively reduce the risks for developing gastroesophageal reflux disease, vomiting, esophagitis, pneumonia, asphyxiation, diarrhea, etc., and it does not require labor for separately adding a gelling agent etc. at the time of ingestion, and since it is liquid, it can be easily ingested by tube feeding.