Probiotic tablets work by delivering live beneficial bacteria into the digestive system, which help maintain a healthy balance of gut flora. These beneficial bacteria, such as Lactobacillus and Bifidobacterium, can improve digestion, support immune function, and inhibit the growth of harmful bacteria. Once ingested, the probiotics travel through the stomach and small intestine to reach the colon, where they can colonize and exert their positive effects. The effectiveness of probiotic tablets depends on factors like the specific strains used, the dosage, and the health of the individual's gut microbiome.