I like Brazil nuts, and the tiny amounts of barium and radium therein don't bother me at all. Seriously, the plants tend to accumulate barium, mostly in the roots and leaves, but it also shows up in the nuts. Like barium, radium is a Group IIa element; the two are chemically similar so the plant takes up both. Regardless, though the nuts contain much more radioactive material than most other foods, the amounts are still miniscule. (Bananas are also slightly radioactive, from potassium-40. A shipping container of bananas has been said to set off radiation detectors at shipping ports. Still...tiny amounts.)How true. And lots of Brazil nuts. Who eats those?
Also Pork and Beans with one sliver of pork fat in the can.
If that radioactivity is of concern to you, best get rid of those Playboy/Penthouse/etc magazines you don't have stacked in a closet. The kaolin clay used to make glossy paper contains tiny amounts of radioisotopes of lead, thorium, thallium, and a few others according to Oak Ridge Associated Universities.
Tobacco is the real offender. Radioactive lead and polonium accumulate on the undersides of leaves from natural uranium & thorium in the soil and in fertilizers, and they don't wash off. It's thought that radioactive elements in tobacco smoke contribute in part to tobacco's carcinogenic properties. That includes secondhand smoke.
Quiz on Friday.
Best -- Terry
PS on pork & beans: Definition of one trillion---the number of cans of Campbell's Pork & Beans that are equivalent to one pork chop (apologies to Johnny Carson/The Great Karnak)