The present invention is directed to a composition for use in 
liver function improvement, 
blood alcohol level reduction and in-vivo 
antioxidant activity enhancement, comprising 
Lactobacillus brevis HY7401, 
Lactobacillus fermentum CS332, 
Lactobacillus acidophilus CSG, 
Bifidobacterium longum HY8001, an 
Alder tree extract, a Selfheal extract, a 
milk thistle extract, a green bean-rice 
bran fermentation extract, a turnip extract, a tomato extract, a broccoli extract, a 
pineapple extract, a 
colostrum powder, 
betaine, 
vitamin B1, B2, B3, B6, B9, B12, C, and E. The composition can improve declined 
liver functions and shows excellent hepatoprotective and hepatocurative activity against 
alcohol on excessive or habitual drinking with the ability to reduce 
blood alcohol levels. Its superior enhancement of in-vivo 
antioxidant activity also contributes to the use of the composition in the prevention of liver diseases and the improvement of 
liver functions. Also disclosed are fermented 
dairy foods, beverages, and health foods, containing the composition as an effective component.