What happens if I eat 5 bananas a day?
But for a healthy person, "it would be impossible to overdose on bananas," says Collins. "You would probably need around 400 bananas a day to build up the kind of potassium levels that would cause your heart to stop beating... Bananas are not dangerous - and in fact they are, and always have been, very good for you." Is it okay to eat 5 bananas per day? In theory, you could eat as many bananas as you want, as long as you're not over-consuming calories, displacing other foods and nutrients that your body needs, or harming your health in other ways.