Grapefruit and 100% grapefruit juice can contribute to potassium intake. One-half serving of fruit and an 8-ounce glass have 4% and 8%DV, respectively.

  • Potassium is important for muscle and heart function, nerve transmission, maintaining fluids, and electrolyte balance.1,2
  • Potassium helps your body build muscle, maintain growth, and break down and use carbohydrates.,1,2
  • Many people do not get enough potassium from their diet, and this nutrient is considered a nutrient of public health concern.3
  • Potassium may play an important role in cardiovascular health. Diets containing foods that are a good source of potassium and that are low in sodium may reduce the risk of high blood pressure and stroke.3
  • Higher intake of dietary potassium may be linked to improvements in bone mineral density and a lowered risk of osteoporosis.2 Potassium is often found with citrate (as well as other minerals) in fruits and vegetables, including grapefruit, which may be one of the reasons for the link between potassium and bone health.4,5 Citrate is converted in the body to bicarbonate, and consequently may support acid-base balance to lessen potential losses of calcium from bones.4,5


  1. MedlinePlus. National Institutes of Health US National Library of Medicine. https://medlineplus.gov/ency/article/002413.htm
  2. Linus Pauling Institute Micronutrient Information Center. Oregon State University. http://lpi.oregonstate.edu/mic/minerals/potassium.
  3. USDA/DHHS. 2015-2020 Dietary Guidelines for Americans. http://health.gov/dietaryguidelines/2015/guidelines/
  4. In: Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate. Institute of Medicine. Washington, DC: The National Academies Press. 2005.
  5. deBaaij et al. Physiol Rev. 2015;95(1):1-46.