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.
White mushrooms, which account for about 90% of the mushrooms consumed in the U.S., have the most potassium at 300 mg per serving, says Lemond, while cremini and portobello mushrooms have the most of the antioxidant ergothioneine, she says.
Mushrooms are rich sources of potassium, a nutrient known for reducing the negative impact that sodium can have on your body.
Some of the best sources of potassium are dark leafy greens such as spinach, which when cooked has an astounding 1,180 mg per cup, per USDA data. Swiss chard is a close second, with almost 1,000 mg per cooked cup, and even bok choy has around 445 mg per cup when cooked.
Low potassium vegetables include cilantro, alfalfa sprouts, lettuce, arugula, kale, Napa cabbage, leeks, spaghetti squash, sweet onions, eggplant, and more. For more low potassium vegetable ideas, see the complete ranking of over 200 vegetables low in potassium.
Water pills (diuretics) help rid your body of extra potassium. They work by making your kidney create more urine. Potassium is normally removed through urine. Potassium binders often come in the form of a powder.
In short, most meats, fish, and seafood are considered high in potassium. Some of the lowest potassium meats are clams, oysters, and tuna. Chicken and turkey aren't considered low potassium meats, but they are lower than other types of meats.
Think of Bananas, think of Potassium, yet Mushrooms have more of it. And with each variety that we examine, we find more goodness. Yes, Portabella Mushrooms have more Potassium than a Banana.
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.
Medium-potassium foods (50 to 200 mg per serving):
½ cup of fresh or cooked carrots (180)
Low potassium diets: A serving of one ounce of Swiss has about 22 mg of potassium, which fits perfectly into a low-potassium diet.
Popular fish like salmon, mackerel, halibut, tuna and snapper all have more than 400 milligrams of potassium in a 3-ounce filet.
Dark chocolate has a surprisingly high potassium content. However, some chocolate snacks also have high sodium levels, so always check the nutritional information.
The most common cause of genuinely high potassium (hyperkalemia) is related to your kidneys, such as: Acute kidney failure. Chronic kidney disease.
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.
Traditionally, white bread was recommended for people with kidney disease because it has less potassium and phosphorus.
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).
You want to avoid high-potassium surf such as halibut, tuna, cod, and snapper. 3-oz servings can contain as much as 480 mg of potassium. On the low end, the same amount of canned tuna has only 200 mg. Salmon, haddock, swordfish, and perch run about 300 mg per 3-oz serving.