Bananas contain a radioactive isotope of potassium called K-40, but it doesn't lead to radiation poisoning.<br /><br />Do you know why?<br /><br />Unit to measure radiation exposure is sievert.<br /><br />According to research, radiation exposure should not exceed 50,000 millisieverts annually.<br />Eating a banana exposes us to only 0.1 microsieverts. So, bananas won't cause radiation poisoning unless you eat millions of them at the same time.
