The invention provides a food for treating
lactose intolerance and
diarrhea of infants. The food is mainly formed by mixing 5-25 parts of
maltodextrin, 5-25 parts of
anhydrous dextrose, 3-15 parts of fructo-
oligosaccharide, 0.5-2.5 parts of dried skim milk, 0.1-0.5 part of
bifidobacterium lactis, 0.1-0.5 part of
lactobacillus rhamnosus and 0.1-0.5 part of
lactase. The invention further discloses a preparation method of the food. The
lactase, probiotics and prebiotics are organically combined to establish a novel method for treating the
lactose intolerance and the
diarrhea. The fructo-
oligosaccharide can be used for promoting the probiotics in a
human body to be greatly multiplied; the activity of the
lactose can be improved by the probiotics, and the
lactase can promote the multiplication of the probiotics, the lactase and the probiotics are mutually promoted to bring out the best in each other, the effect of treating the
lactose intolerance and the
diarrhea is greatly improved, the
lactose intolerance and the diarrhea are basically treated, and the intestinal health is protected. Through clinical
verification, the effective rate of treating the
lactose intolerance and the diarrhea of infants is up to more than 93% and the food has the active effects of convenience for drinking and obvious health-care effect.