◆1．Banana

Hanna_photo / Shutterstock.com

　Some familiar foods should be avoided when kidney function is declining. Bananas are one of the best examples.

　Known as a high potassium food, a standard-sized banana contains 422 milligrams of potassium. Consider pineapple, for example, which is relatively low in potassium, instead.

＞Next page:　Hot dogs, bacon, pepperoni…