Avocado Sandwich (Photo credit: J. Chris Vaughan ) In general, aim to consume about 3,500 milligrams of potassium a day. Your best bet is simply to eat more potassium-rich foods, especially fruits, vegetables, and low-fat dairy products. If you're following the DASH diet, eating these foods shouldn't be much of a problem. Have a cup of orange juice with breakfast, half an avocado in a salad at lunch, and half a cup of cooked spinach or a baked potato with dinner. For snacks, try a banana, 8 ounces of low-fat yogurt, or five dried prunes. Cantaloupe Bowl (Photo credit: Washthebowl ) Below you will find foods that contain plentiful amounts of potassium (starting with those that contain the greatest amounts of the mineral). Don't just home in on the best sources of the mineral; eating a wide range of foods provides healthy benefits, like phytochemicals and fiber. Apricots, dried: 1 cup, 1,567 mg Avocado: 1 medium, 1,097 mg Potato (baked with skin): 1 medium, 84