
15. Blueberries
If you watched Willy Wonka and the Chocolate Factory as a kid, you might have had nightmares about turning into a blueberry. However, you do not need to fear unless you have been naughty and eating untested chewing gum when you were told not to. Blueberries have a rich nutritional profile and are one of the best sources of probiotics that you can eat. They contain potassium, copper, B vitamins, vitamin C, vitamin K, folate, and manganese. People who eat blueberries regularly have much better gut health, less inflammation, more sensitivity to insulin (bye-bye, diabetes!), and stronger GI tracts. Start adding blueberries to smoothies, oatmeal, cereal, and even baked goods to get their prebiotics and other health benefits.