Bananas
Another fruit that includes natural digestive enzymes is the banana. They include amylases and glucosidases, two enzyme families that break down complex carbohydrates such as starch into smaller, more readily absorbed sugars. As bananas ripen, these enzymes, like mangoes, break down starch into sugars. Ripe yellow bananas are significantly sweeter than unripe green bananas because of this. In addition to their enzyme content, bananas are a good source of dietary fiber, which may help with digestion. A medium banana (118 g) has 3.1 g of fiber.
Two-month research involving 34 women investigated the relationship between consuming bananas and the formation of good gut flora. Women who ate two bananas each day had a little, non-significant increase in beneficial gut flora. They did, however, have substantially less bloating.