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Every Banana You Buy Was ScheduledScience SurprisesThe bananas in your fruit bowl were cut while they were rock hard and completely green, often a couple of weeks and a few thousand miles before they reached your kitchen. Somewhere along the way, someone decided exactly how yellow they'd be when the store put them out.
Are Bananas Radioactive? The Surprising Science Behind the Banana Equivalent DoseScience SurprisesYes, bananas are slightly radioactive. They contain potassium, and a tiny fraction of all natural potassium is potassium-40, a radioactive isotope. One banana delivers roughly 0.1 microsieverts of radiation, about one-thousandth of a chest X-ray.