FACT CHECK #U4ZH6TWN

WHAT WE FOUND

Multiple high-credibility sources confirm that bananas contain naturally occurring radionuclides in the form of potassium-40 1 2 4. A typical banana contains about 450 mg of potassium, and its radioactive K-40 content exposes a consumer to approximately 0.01 mrem of radiation 3. While bananas are radioactive, the dose is considered very small and significantly less than the background radiation humans encounter daily 5 10. This phenomenon is so well-documented that the term banana equivalent dose is used to compare radiation levels in various contexts 6 8 9. Potassium is an abundant element in the Earth's crust, and its radioactive isotope is naturally present in many foodstuffs 7.

SOURCES

1. 1 · energy.govACADEMIC
   5 Radioactive Products We Use Every Day | Department of Energy

   TIER A

2. 2 · epa.govACADEMIC
   Natural Radioactivity in Food | US EPA

   TIER A

3. 3 · mcgill.caACADEMIC
   Is it true that bananas are radioactive? - McGill University

   TIER A

4. 4 · sciencefocus.comACADEMIC
   How many bananas would I need to eat to become radioactive?

   TIER A

5. 5 · universityofcalifornia.eduACADEMIC
   What to know before you go bananas about radiation

   TIER A

6. 6 · en.wikipedia.orgWEB
   Banana equivalent dose - Wikipedia

   TIER B

7. 7 · world-nuclear.orgWEB
   Naturally-Occurring Radioactive Materials (NORM)

   TIER B

8. 8 · mirion.comWEB
   Naturally Occurring Radiation & NORM - Mirion Technologies

   TIER B

9. 9 · symmetrymagazine.orgWEB
   This radioactive life | symmetry magazine

   TIER B

10. 10 · aranet.comWEB
    Are bananas really radioactive? - Aranet

    TIER B