| 摘要 |
PROBLEM TO BE SOLVED: To obtain a viral infection inhibitor high in safety, and to provide food/drink containing the inhibitor. SOLUTION: This viral infection inhibitor comprises as the active ingredient an extract obtained by subjecting ground swallow nests to extraction with water, or an enzyme-treated product of the extract obtained by subjecting the ground swallow nests to the extraction with water or hot water, wherein the enzyme is preferably a protease and the average molecular weight of the enzyme-treated product is preferably 7,000-20,000. The food/drink contains preferably 0.1 mg to 100 g of the viral infection inhibitor per meal. |
