Science · True or False?
The answer is True.
Bananas are naturally radioactive due to their high potassium content, which includes the naturally occurring isotope potassium-40, found in tiny amounts in all potassium. This radiation is completely harmless: a single banana delivers a negligible dose of about 0.1 microsieverts, so little that scientists jokingly use it as an informal unit called the Banana Equivalent Dose.