摘要:“ Probiotic ” is defined as live microorganisms which promote health in addition to effects of traditional nutrition when used adequately. One of the mentioned effects of probiotics is to stimulate mucosal immunity by effecting gut metabolism. Several recent studies have suggested a role for gut- colonising bacteria in preventing and treating manifestations of food allergy and atopic disease, including atopic eczema, asthma and other allergies. It is also mentioned that probiotics have beneficial effects on allergic reactions by improving mucosal barrier function and moreover probiotic consumption by children can effect the improvement of immunity system. Probiotics such as Lactobacillus rhamnosus , Lactobacillus acidophilus and Bifidobacterium bifidum are used in treatment of food allergies associated with milk protein. For instance it is suggested that Lactobacillus rhamnosus can effect probably by breaking proteins into smaller peptides and amino acids. It is also determined that adding this bacteria to the diets of children, alleviates the symptoms of atopic dermatit . Probiotic consumption by new-born infants can also prevent them from allergies that can occur during childhood. The prevalence of allergic diseases has increased, particularly in recent years so that the number of research is increasing. In Western societies probiotics are used in powder, gel or capsule forms in the treatment of allergic diseases.