Here is an interesting fact: Bananas are naturally radioactive. They contain potassium, and a tiny fraction of that potassium is actually the radioactive isotope potassium-40. This has even led to the creation of the “banana equivalent dose,” a playful unit of radiation exposure!
XKCD created this handy Radiation Dose Chart that shows the radiation exposure you get from bananas as compared to other sources of radiation, to put it in perspective. Luckily, I’ll never get radiation from sleeping next to someone else.
Another fun banana fact: banana equivalent dose is also the threshold at which a beer is allowed to be classified as non-alcoholic in spite of not technically being completely devoid of alcohol.
The (quite reasonable) compromise being that any content below the 0.5% some bananas contain metabolizes so quickly that it’s literally impossible to get drunk on it and furthermore too dilute for even the severely allergic and people on medicine with adverse interactions to feel any ill effects.
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