There are many fruits that contain the highest amount of fiber – and when we say highest, we simply include fruits that have more than 2 grams of fiber.
These fruits include the following: A small apple contains around 3 grams of fiber, medium with 4 grams and large with 4.5 grams. 1 whole avocado contains around 2.8 grams of fiber. 1 whole banana contains 3 grams of fiber. 1 large orange contains 2.4 grams of fiber. 1 medium peach contains 2.3 grams of fiber. 1 cup of strawberries contain 3 grams of fiber. One slice of watermelon contains 2.8 grams of fiber. Raspberries are probably the one with the highest amount of fiber with 8 grams of fiber per cup.