PROBLEM TO BE SOLVED: To provide a solid composition that has improved adherability in the mouth, reduced unpleasant taste and excellent texture and flavor in spite of containing high-concentration wheat albumin.SOLUTION: The solid composition comprises components of (A) wheat albumin, (B) a carbonate and (C) an organic acid in a mass ratio of the component (A) to the component (B) [(A)/(B)] of 1.5-16.5 and in an equivalent ratio of the component (C) to the component (B) of 0.7-1.9.