Well the potassium in the banana is really a mineral that helps to control your blood pressure which in turn helps your heart health too,you see this mineral potasssium is very important and very few people get enough of,and studies show that people who eat foods with potassium have allmost 30% lower risk of heart disease plus the banana also has a good amount of magnesium which is also very important for your heart health too,and the banana also has veryb powerful antioxidants too like dopamine and also catechins you see these two antioxidants are linked to like the reduced risk of hear issues and also degenerative issues too and eating bananas are good for your kidneys you see the potassium not only good for your blood pressure but also very good for your kidney function also.
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From @oldstrongman