See this chart from the same author: https://xkcd.com/radiation/ https://xkcd.com/radiation/ According to wikipedia, low-level nuclear waste "can range from ju

See this chart from the same author: https://xkcd.com/radiation/ https://xkcd.com/radiation/ According to wikipedia, low-level nuclear waste "can range from just above background levels found in nature to very highly radioactive in certain cases such as parts from inside the reactor vessel in a nuclear power plant." From above chart, eating a banana is equal to about 2% of the radiation received from normal background levels in a single day. So I would say, a banana is at least 1-2 orders of magnitude less radioactive than low-level nuclear waste.