<；P>；PROBLEM TO BE SOLVED: To provide a tube administration thickener containing protein-containing liquid food, capable of stably improving viscosity in a short time in the stomach after tube administration, regardless of the kind or mixing prescription of protein-containing liquid food, while having fluidity of an extent allowing easy flow in a tube (preventing blockage of a tube) by weighting in tube administration, and viscosity of an extent allowing to prevent leakage from fistula, and preventing backflow to the gullet. <；P>；SOLUTION: This tube administration thickener containing protein-containing liquid food includes a pair of (A) solution and (B) solution: (A) xanthan gum-containing solution and (B) solution which is obtained by adding Locust bean gum and/or glucomannan to protein-containing liquid food followed by heat treating at &ge；80°；C. <；P>；COPYRIGHT: (C)2009,JPO&INPIT
