The present invention relates to a food composition for alleviating a hangover, the composition containing, as an active ingredient, at least one strain selected from Lactococcus chungangensis, Lactococcus fujiensis, Lactococcus lactis subsp. cremoris, Lactococcus lactis subsp. lactis, and Lactococcus raffinolactis or a culture liquid thereof. Specifically, a functional cream cheese was manufactured using five species of Lactococcus strains above having an ethanol and acetaldehyde degrading function, and this functional cream cheese is preferably used for a functional health food for alleviating a hangover, and, extensively, acetaldehyde, which is an ethanol degradation product, is degraded to minimize the accumulation of acetaldehyde, which is likely to cause cancer in the body. In addition, the functional cream cheese, which is a cheese starter for lowering a unit cost compared with cream cheeses in the market, can be differentiated from cream cheeses sold in the market.