Grapefruit, raw
0 milligrams of sodium in ½ medium (about 4 inch across)
In ½ medium (about 4 inch across)
- Sodium
- 0 milligrams of sodium in ½ medium (about 4 inch across)
- Potassium
- 178 milligrams of potassium in ½ medium (about 4 inch across)
- Phosphorus
- 10 milligrams of phosphorus in ½ medium (about 4 inch across)
- Protein
- 0.8 grams of protein in ½ medium (about 4 inch across)
- Carbohydrate
- 10 grams of carbohydrate in ½ medium (about 4 inch across)
- Sugars
- 8.9 grams of sugars in ½ medium (about 4 inch across)
- Fiber
- 1.4 grams of fiber in ½ medium (about 4 inch across)
- Saturated fat
- less than 0.1 grams of saturated fat in ½ medium (about 4 inch across)
- Calories
- 41 calories in ½ medium (about 4 inch across)
Where these numbers come from
USDA FoodData Central, SR Legacy, record 173033. The source describes it as: Grapefruit, raw, pink and red and white, all areas.
U.S. Department of Agriculture, Agricultural Research Service, Beltsville Human Nutrition Research Center. FoodData Central. [Internet]. [cited 11 October 2026]. Available from https://fdc.nal.usda.gov/. Releases used: Foundation Foods, April 2026; SR Legacy, April 2018; Survey Foods (FNDDS 2021-2023), October 2024.
Data built on 11 October 2026 (data-2026-10-11).