People are more radioactive than bananas [1], so that's probably not too surprising. DrAwdeOccarim's sibling comment to yours mentions you can buy rocks to tes

People are more radioactive than bananas [1], so that's probably not too surprising. DrAwdeOccarim's sibling comment to yours mentions you can buy rocks to test with. [1] https://www.sciencefocus.com/science/how-many-bananas-would-i-need-to-eat-to-become-radioactive/ https://www.sciencefocus.com/science/how-many-bananas-would-...