The level of radiation can be measured bananas

Banana equivalent - term used supporters of nuclear energy for the characterization of the activity of the radioactive source by comparison with a dose of radiation contained in a normal banana.

Banana equivalent dose is defined as the amount of radiation injected into the body when eaten a banana. Radiation leaks at nuclear power plants are often measured in units such as tiny picocuries (one millionth of millionths of a curie part). Compare this to the amount of radioactivity contained in a banana allows intuitively assess the degree of risk of such leaks.

The average banana contains 3520 picocuries per kilogram of body weight, or about 520 picocuries 150-gram banana. Radioactivity bananas often cause false positives radiation detectors used to prevent the smuggling of radioactive materials in the United States

However, the eating of a banana does not increase the amount of radiation in the body as a living organism homeostatically maintains potassium levels after eating a banana and an equivalent amount of isotope excreted from the body during metabolism.

Source: ru.wikipedia.org

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