Glycemic index of grapefruit The glycemic index (GI) of grapefruit equals to 22, which classifies it as a low GI food. Glycemic load of grapefruit The glycemic load (GL) of grapefruit is equal to 0.0, which classifies it as a low GL food. Grapefruit: Calories and Nutritional info 100 grams of grapefruit contain 35 kcal … Continue reading Grapefruit