Bananas will read higher. I'm talking about brazil nuts. It depends on the food and what the source of the radiation is. If you want to find low level uraniu

Bananas will read higher. I'm talking about brazil nuts. It depends on the food and what the source of the radiation is. If you want to find low level uranium contamination in most foods, you'll need something more sensitive than a geiger counter. If it was enough to see on the geiger counter, eating it would be a really bad idea.