Have Citrus Fruit in Moderation

Oranges are a great source of vitamin C that the body needs, but it also has a high level of potassium, which the blood and kidneys don’t need. There is an estimated 333 mg of potassium in a large orange and 473 mg in a glass of its juice. This can be a little too high for those with kidney problems. You can always substitute with grapes, apples, or cranberries along with their juices (lower levels of potassium).