Popsugar Fitness Healthy Eating Tips What Is One Serving of Fruit? Here's How Much Fruit You Should Be Eating Every Day, Say Experts June 21, 2018 by Lizzie Fuhr View On One Page Photo 14 of 14 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 14 Grapefruit One medium grapefruit = one serving of fruit Previous Next Start Slideshow Healthy Eating TipsHealthy Living