Selenium is deficient in soils in limited areas of Australia. It's unlikely that most Aussies will suffer from a deficiency. I have many relatives in Oz, in both Perth and the Melbourne areas. They are all hale and hearty and they appear to care not a jot about potential deficiencies. My philosophy on all this is to stop worrying and enjoy life. A handful of Brazils is a bloody good idea, because I love Brazils. Until tonight I was blissfully unaware of their selenium content. Good ol' rainforests, eh? ;-).