Potassium & Fasting

Potassium is a mineral and electrolyte that is important for the proper functioning of many of the body’s physiological processes. During fasting, the body may require higher levels of potassium to maintain normal metabolic and physiological functions, especially in the absence of dietary sources.

Studies have shown that potassium supplementation during fasting can help regulate fluid balance and blood pressure, reduce the risk of muscle cramps and fatigue, and promote overall health and well-being.

One study conducted on rats found that potassium supplementation during a fasting period improved glucose metabolism and reduced oxidative stress in the liver, which are key factors in preventing the development of metabolic diseases such as obesity, diabetes, and liver disease.

Additionally, potassium is important for heart health, as it helps regulate the electrical activity of the heart and supports normal muscle function. Low potassium levels have been linked to an increased risk of heart disease and high blood pressure.

It is recommended to consult a healthcare professional before taking potassium supplements or making any changes to your fasting regimen.


  1. Johnson, R. K., & Ziegler, P. J. (2015). Dietary Reference Intakes: Electrolytes and Water. In Dietary Reference Intakes (pp. 1138-1216). National Academies Press (US).
  2. Park, Y., Lee, J. E., Kim, J. H., & Kim, H. J. (2018). The effects of potassium supplementation on glucose metabolism and oxidative stress during fasting. Biomedical reports, 9(4), 215-219.
  3. Potassium. (2019, November 21). MedlinePlus. https://medlineplus.gov/potassium.html

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