Disclosed is a liver function-protecting agent which comprises a phospholipidas an active ingredient, and which can exhibit an excellent prophylactic andameliorating effect on the deterioration in the liver function when ingestedorally. Also disclosed is a liver function-protecting food, beverage or feed.The phospholipid is preferably one derived from milk or a milk material. Alternatively,the phospholipid may be used in the form of a phospholipid-containing compositionprepared from milk or a milk material and containing the phospholipid in an amountof 10 wt% or more relative to the total solid content.
