If your diet plan isn't delivering the results you're looking for, Swanson Yacon Root Extract featuring Yacontrol(R) could be the metabolism game-changer that helps you reach your goals. Yacon root works in harmony with gut bacteria to support gut and metabolic health. It contains high concentrations of short-chain fructooligosaccharides (FOS), a soluble fiber with numerous health and fitness benefits. For one, it serves as a prebiotic, nourishing the beneficial bacteria that reside in the GI tract, which helps support metabolic function. Plus, as a soluble fiber source, it promotes regularity to keep the GI tract functioning smoothly. Our Yacon Root capsules feature a concentrated 4:1 root extract, derived from non-GMO yacon root.