Nagano Lean Body Tonic is an all-natural blend of nutrients, polyphenols, probiotics, prebiotics, digestive enzymes, and other potent bioactive organic ingredients. The formula speeds up the metabolism to promote rapid fat-burning and weight loss, suppresses hunger and cravings, enhances digestion, boosts energy, improves mood, decreases stress-based eating, and more. The Nagano Lean Body Tonic formula also contains probiotics, which are healthy gut bacteria that live in the intestines killing harmful microbes. The supplement is rich in prebiotic fiber, which as we said in our review of Probiotic 50 Billion CFU, feeds the probiotics in the gut. This helps them proliferate and promote a healthy microbiome and may also help with weight loss.