Synsepalum dulcificum is a plant in the Sapotaceae family, native to tropical Africa. It is known for its berry that, when eaten, causes sour foods subsequently consumed to taste sweet. This effect is due to miraculin Miracle fruit is an evergreen shrub that grows in West Africa. The berry, leaf, and seed oil are used as medicine. People use miracle fruit for diabetes, obesity, taste disturbances in people treated with cancer drugs, and other conditions, but there is no good scientific evidence to support these uses.Miracle fruit contains a chemical that affects taste receptors in the tongue. This chemical makes the tongue register sour tastes as sweet tastes. The chemical itself has no taste at all. Miracle fruit also contains chemicals that might lower levels of blood sugar.