A medium-sized apple contains approximately between 2.4 grams and 4.8 grams of dietary fiber, depending on the source and whether the skin is included. More specifically:

• An apple with skin typically contains about 3.7 to 4.8 grams of fiber per medium apple (around 150-182 grams)

• An apple without skin has less fiber, around 2.4 grams per medium apple

• Some sources list around 4.37 grams of fiber in a medium apple with skin

• Another source notes about 3 grams of fiber per medium apple

The variation mainly depends on the apple size and whether the skin is eaten, as the skin contains insoluble fiber. Overall, a medium apple with skin is a good source of dietary fiber, contributing roughly 4 grams on average. This fiber includes soluble fiber like pectin, which has benefits for blood sugar and cholesterol management