Apples are fantastic foods for your heat and brain due to their antioxidant content, but their natural pectin fiber is the reason they’re so great for your gut. Pectin feeds good bacteria and apples are also a good source of inulin and natural FOS (a beneficial type of sugar that feeds the gut). Apples are also good for keeping you full and warding off high cholesterol. Choose Granny Smith if you’re watching your sugar intake and always choose organic since apples are high on the Dirty Dozen list of pesticide-laden fruits and veggies.

https://authoritynutrition.com/19-best-prebiotic-foods/