You’ll Have to Work Really Hard to Overdose
As we’ve mentioned, most Americans are deficient in potassium, and two whole bananas a day won’t provide your full RDA. You’d need to eat 7 or 8 bananas to get enough daily potassium from that source alone. However, too much potassium is just as dangerous as too little – it can destroy your heart muscle, for one. But for a healthy person to reach that danger zone, he or she would need to eat 400 bananas in one day! We suspect that stomach capacity would stop that attempt long before anyone got too much potassium from eating bananas.
So for any healthy person, eating two bananas a day is a great idea. People who are taking beta blockers for heart disease should be careful, as beta blockers raise potassium levels. And bananas are classified as “medium” on the glycemic index, so a twice-a-day habit might not be the best idea for diabetics. Otherwise, have at it. Research indicates that a high potassium intake reduces your risk of death by any physical ailment by a solid 20%. That’s a nice healthy cushion!