Common probiotics in yogurt are lactic acid bacteria and bifidobacteria. Choose plain yogurt to nix added sugars, and opt for Greek if you want double the protein.
Kefir is in the same family as yogurt, but is referred to as thin yogurt because it is in liquid form. It has the consistency of drinkable yogurt. It has been consumed for hundreds of years
Asparagus probably isn't in your regular breakfast rotation, but it makes the list because it's packed with prebiotics. While probiotics are good bacteria, prebiotics are food for the bacteria
Bananas also contain prebiotics, in addition to vitamins, minerals, antioxidants and fiber. Unripe bananas contain resistant starch, a type of carbohydrate that is resistant to digestion
Oats contain fiber, in the form of beta-glucans, which have been connected to lowering cholesterol, controlling blood sugar levels and creating a healthy gut microbiome. Fiber also keeps you full.
Apples are easy to grab-and-go if you're rushing out the door—pair with peanut or almond butter for healthy protein and fat. They're also delicious mixed into oatmeal or sliced on toast with nut butter.
Flaxseeds are considered a prebiotic food, and their insoluble fiber can function as a natural laxative. Flaxseeds are easy to add to many breakfast dishes, including oatmeal, overnight oats, smoothies, oat muffins, yogurt and cereal.