Ironically though, your body doesn’t really store excess potassium. When you eat a banana, you’re only replacing a banana’s worth of potassium within your body, so it ends up being largely net 0 in terms of a radiation dose, even though it’s radioactive.
It’s well-enough documented that there’s an informal unit of measurement for it: https://en.wikipedia.org/wiki/Banana_equivalent_dose
Ugh… They actually use bananas for scale…
Ironically though, your body doesn’t really store excess potassium. When you eat a banana, you’re only replacing a banana’s worth of potassium within your body, so it ends up being largely net 0 in terms of a radiation dose, even though it’s radioactive.
But you could exchange non-radioactive isotopes for the radioactive ones bananas are rich in, right?