Health How Much Fiber Is in an Apple? by Dr Natalie Singh - Health Editor June 15, 2026 by Dr Natalie Singh - Health Editor June 15, 2026 A medium-sized apple typically contains about 4.4 to 4.5 grams of fiber, according to the U.S. Department of Agriculture (USDA). Most of this fiber is found in the skin, which … 0 FacebookTwitterPinterestEmail