Small bananas contain 362 milligrams of potassium, while medium bananas have 422 milligrams of the mineral. Large bananas provide 487 milligrams of potassium, more than 10 percent of the daily recommended amount of 4,700 milligrams for healthy adults. Extra-large bananas, 9 inches or longer, have a whopping 544 milligrams of potassium in them. More specifically, bananas provide fiber, potassium, vitamin B6, and vitamin C. Enjoy your bananas with other foods, such as nuts or full fat yogurt, to help slow the digestion and absorption Bananas are full of heart and digestive healthy nutrients for your dog. The health benefits of bananas include: Rich in potassium and magnesium: Potassium and magnesium are both helpful for Avocados. Greg DuPree. Avocados are full of fiber and heart-healthy fats, and half of an avocado contains 10 percent of your daily potassium needs—which is already more than a banana. "Not to mention the texture and flavor they add to any dish," Shapiro adds. 02 of 07. A Banana tree that lacks potassium will show the margins or tips of yellow leaves. The lack of magnesium shows yellow in the middle of the leaf parallel to the central vein and leaf edge. Usually, when the soil is dry, water Banana plants and provide full sun, quality fertilizer, and a warm and humid environment. Inappropriate water One medium banana has 422 milligrams of potassium or 9 percent of the daily value (DV). The potassium in bananas can start to increase your potassium levels within 30 to 60 minutes, per the November 2012 ‌ Journal of Athletic Training ‌ study. Advertisement. In the study, researchers tested whether eating 1 or 2 bananas would increase Banana nutrition facts. One medium banana has: 105 calories. 1 gram protein. 0 grams fat. 27 grams carbohydrates. 3 grams fiber (12% daily value (DV)) 422 milligrams potassium (16% daily value) 10 Fruits high in potassium include avocados, guavas, kiwifruit, cantaloupe, bananas, pomegranate, apricots, cherries, and oranges. The current daily value (DV) for potassium is 4700mg, recently increased from 3500mg by the FDA. Adults need 4,700 milligrams of potassium a day, so a medium banana provides nearly 10% of the daily requirement. RELATED: Popular Foods With Foods With More Potassium Than a Banana. Bananas have antimicrobial and antiviral properties. Shutterstock. The internet is full of misinformation about how bananas may help protect against Covid-19, The media coverage was broadly accurate, but sometimes oversimplified. In particular, the Express headline suggests that a banana a day would be enough to meet your potassium requirements, whereas, in fact, a banana contains about 11 per cent of the 3,500mg recommended by UK dietary guidelines. SiRoJ7.