Gastrointestinal diseases are an important health problem in Mexico, they are commonly related to poor quality of water and incorrect food preparation. These diseases mainly affect children, and their most common cause is due to the action of enteropathogenic bacteria. The regular consumption of probiotics has recently been proposed as an alternative to reduce the incidence of this type of disease. Probiotics are microorganisms that increase the beneficial microbiota and reduce the presence of pathogenic bacteria in the gastrointestinal tract, thus improving intestinal health and reducing the incidence of gastrointestinal diseases, as well as their possible complications and the unnecessary consumption of antibiotics. Probiotics are commonly found in dairy products such as yogurt, the most common strains used in industry are Lactobacillus and Bifidobacterium. These commercial drinks proclaim several potential benefits of probiotics in terms of mucosal repair and protection of the intestinal microbiota. Therefore, the objective of this project is to evaluate the inhibitory effect of commercial probiotics against enteropathogenic bacteria through in vitro assays, in order to compare the action of different commercial probiotics and determine if these products could have a positive effect on the intestinal health of consumers.