Probiotics may support weight loss indirectly by improving gut health, which influences metabolism, appetite regulation, and fat storage. Certain strains, such as Lactobacillus gasseri, Lactobacillus rhamnosus, and Bifidobacterium lactis, have shown potential to reduce body fat and waist circumference in some studies. However, probiotics are not a standalone solution for weight loss and should be combined with a healthy diet and regular exercise for the best results.