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It keeps your muscles and nervous system working right. It helps the contraction of muscles, maintenance of fluid balance, transmission of nerve impulses, regular heart rhythm, and cell metabolism. It can be found in oranges, bananas, dried fruits (dried apricots), cantaloupes, honeydew melon, sweet potatoes, white potatoes, white beans, kidney beans, tomato sauce, and spinach, milk, yogurt, soy, cereals, and meat.
What is potassium?