According to sites like this, bentonite clay can absorb and remove radiation from the human body.
Calcium Bentonite clay is the natural detoxing agent that can be used internally, externally with poultices and full body applications, and by taking detox clay baths. These are highly beneficial methods for detoxification, especially for cases of heavy metal poisoning and radiation buildup. So consider releasing the toxic burden of the body inside and out with a safe and effective Calcium Bentonite Clay detoxification program.
This claim seems to be pretty prevalent within the alternative medicine community. Sites like this (and many others) state things like this:
Another use for bentonite clay, which is very timely considering the recent natural and the Fukushima nuclear disaster in Japan, is adsorption of radiation. Not only does bentonite clay adsorb radiation from nuclear fallout, it also adsorbs any kind of radiation.
Is there evidence to support that bentonite clay can remove radiation from the human body?