ImagePotassium is a mineral found naturally in many fruits and vegetables like potatoes, bananas, dried fruits, dried beans and peas and nuts. Healthy kidneys measure potassium in your blood and remove excess amounts. Diseased kidneys may fail to remove excess potassium, and with very poor kidney function, high potassium levels can affect the heart rhythm.

Potassium levels can be affected. Both high and low potassium levels are dangerous to your heart.
Foods that have significantly high potassium content are: Bananas, fruits, coconut water, dark green leafy vegetables, dried beans, “salt substitutes”, nuts, potato, and tomato. See your nutritionists for detailed instructions.
Coconut, coconut water, groundnuts.
Raw vegetables and soups.
Dals and legumes.
Cocoa and all cocoa products.
Aerated drinks. (soft drinks)
Dry fruits.
Malted drinks like bournvita, horlicks, beer, drinking chocolate etc.
To lower potassium content of food: Peel, cut and soak vegetables in water for sometime. Rinse them and boil them in large volume of water. In this way the potassium is leached into the water. This water should be discarded and vegetables cooked as required.
All fruits are rich sources of potassium; however, apple, papaya, guava, pear, pineapple and orange have comparatively less potassium and could be advised.
Do not use a pressure cooker or microwave for cooking vegetables and fruits.