Other tomato products may also contain high levels of potassium. A half-cup of tomato puree has 560 milligrams, while a medium fresh tomato contains about 290 milligrams.
Tomatoes are high in potassium, but pasta is served with many sauces that are not tomato-based.
Fresh tomatoes contain a decent amount of potassium (one medium tomato has 292 mg, per USDA data), and you'll get even more bang for your buck from more concentrated forms of tomatoes, such as tomato paste (162 mg per tablespoon) or tomato sauce (728 mg per cup).
One cup of tomato juice has 581 mg of potassium, which is 12% DV. This is over 100 mg more potassium than a banana. "The lycopene [an antioxidant] found in tomato juice can lower LDL (or "bad") cholesterol levels in the blood," Nicole says.
Potassium Content of Tomatoes
One medium-sized tomato supplies 292 milligrams of potassium and a small tomato provides 216 milligrams. A plum tomato or an Italian tomato each contains 147 milligrams of potassium. One cherry tomato supplies 40 milligrams of the essential mineral.
Blanching your vegetables in boiling water for 1 minute before using in cooking will also help reduce the potassium content. If making a tomato-based sauce, use less tomato than you usually would. Use tinned tomatoes rather than tomato paste, puree or passata.
How much potassium is in an egg? One large egg contains about 63 mg of potassium. 1 Eggs are considered a low-potassium food, but check with your doctor or dietitian to find out how often you should eat them.
Low-potassium vegetables:
Broccoli (raw or cooked from frozen) Cabbage. Carrots (cooked) Cauliflower.
Potassium and exercise
When you exercise, your muscles lose potassium. This creates a substantial rise in blood potassium levels. For most people, the kidneys filter out the extra potassium fairly quickly, and potassium levels return to normal within a few minutes of rest.
Including tomatoes in a low potassium diet: portion size
Most people with CKD can safely eat one medium (80g) tomato daily (as a one of your 5 a day), perhaps served with a cooked breakfast, lunch or salad. Canned tomatoes used in cooking are often divided into several portions for the finished meal.
Most people with early-stage CKD or a kidney transplant do not have to limit tomatoes because of potassium. If your laboratory results show higher levels of potassium, your doctor or kidney dietitian may talk with you about how much to eat. Potassium can be a concern depending on the amount you eat.
Onions: Another great way to add flavor to any food, onions have health benefits, too. They are low in potassium and rich in flavonoids–a powerful antioxidant that can help reduce heart disease and protect against cancer.
While not considered a high potassium food, the potassium in cheese should absolutely be made aware. On average, one ounce of cheese will provide about 35 milligrams of potassium. The cheese with the most potassium is processed cheese (like the cheese-in-a-can products).
Most meats add some potassium to your meals. Chicken breast has the most per 3-ounce serving with 332 milligrams, but beef and turkey breast contain 315 and 212 milligrams, respectively.
Broccoli is a medium potassium food, low in sodium and phosphorus, and suitable for all the following kidney conditions and treatments: Chronic Kidney Disease (CKD) Transplant.
Potatoes are richer in iron, calcium, potassium, magnesium, copper, zinc, and phosphorus, while tomatoes contain less sodium.
Medium-potassium foods (50 to 200 mg per serving):
1 small apple or ½ cup of apple juice (150) ½ cup of peaches canned in juice (120) ½ cup of canned pineapple (100) ½ cup of fresh, sliced strawberries (125)
Some of the highest potassium meats include chicken, clams, spam, trout, anchovy, salmon, pork, sausage, ham and beef. Other potassium rich meats are crab meat, chicken breast, turkey, canned tuna, shrimp and bacon.
4. Seafood. Popular fish like salmon, mackerel, halibut, tuna and snapper all have more than 400 milligrams of potassium in a 3-ounce filet.
Because mushrooms are high in potassium and low in sodium, eating mushrooms can help decrease the risk of high blood pressure and cardiovascular disease. The high fiber content in mushrooms – about 3 grams in one cup – can help people with type 1 diabetes lower their blood sugar levels.