Actually, it seems they harvest only a fraction of the actual available nuts,Jodiat wrote:The Brazil nuts are being over harvested right now
as most Brazil nut trees are deep inside the rain forest.
Outside the forest there are planted trees, which might be over harvested indeed.
Still its very possible to get too much of it by overeating Brazil nuts.If you worried about radioactivity of the nuts then I wouldnt be alarmed unless you are eating the shells which is where nearly all of it is.
Thats why we recommend eating no more than a handful of nuts a day.