Avocados
Avocados are known to contain many nutritional properties, including antioxidants, [2] heart-healthy fats, [3] and fiber. [4] Although avocados usually contain healthy elements, they are also considered as one of the high-potassium foods to avoid for a healthy kidney. According to research, an average-sized avocado contains about 690 mg of potassium.
If you consume one-fourth of an avocado, the amount of phosphorus consumed will be lower than its usual quantity. Avocados such as guacamole should be reduced or avoided if you are on a renal diet or if your doctor tells you to limit your phosphorus intake. It is important to note that people have different needs and you should always consider your total diet and health goals before anything.
Bananas
Bananas contain high levels of potassium. They contain low levels of sodium. A medium banana contains about 422 mg of potassium. If your doctor tells you to reduce your potassium consumption, it may be difficult for you if a banana is a regular staple.
Many other tropical fruits contain high levels of potassium. But, pineapples contain significantly less amount of potassium than other tropical fruits and are a better alternative.