Prebiotics are compounds, which our body can not digest, but have a physiological effect in the gut by stimulating the growth and activity of beneficial bacteria (bifidobacteria and lactobacilli). They are only substances that help, for energy supplements for beneficial bacteria. They are also good for the prevention of infection or stimulation of the immune system. Daily consumption of prebiotic fibers promote digestive health, reducing bloating and improve the absorption of vitamins and minerals. Can be found in foods such as onions, bananas, garlic, honey, leeks or artichokes among others.