Potassium

Potassium is both a chemical element and a mineral essential to the human body. Potassium is important for nerve and muscle function, and especially important for the heart.

Potassium ion
Potassium ions, K+, are important in conducting signals between cells. Potassium is an electrolyte.

Deficiency
The average person needs about 4,700mg of potassium per day.

Low levels of potassium have been linked to a number of health problems including high blood pressure, heart disease, stroke, arthritis, cancer, digestive disorders, and others.

A condition called hypokalemic periodic paralysis causes levels of potassium to drop too low, causing a temporary full or partial paralysis.

Risks and safety
Excessive amounts of potassium on the blood can cause hyperkalemia, and even death.

Potassium can also interact with many other drugs.

Costs and availability
Potassium is available over the counter in the form of tablets or capsules, liquid, or soluble powder. It is a main ingredient in oral rehydration solutions, which was commonly used to treat dehydration. Potassium is also available for IV administration.

Foods
Potassium is also found in many foods, including bananas, avocados, almonds, peanuts, citrus fruits and, green leafy vegetables.

Learn more

 * Potassium Supplements: Benefits, Potassium Deficiency, Dosage and More - WebMD
 * Hyperkalemia - drugs.com
 * Linus Pauling Institute Micronutrient Information Center – Potassium