I have a new colleague that just started working at my office and he smells strongly of sulfur or unburnt matches. My only previous experience with this smell is after I bathed in a natural sulfur bath and the locals told me not to shower so that the benefits of the sulfur can be absorbed by my body. After that my clothes smelled of sulfur for a week. I have noticed that when I eat alot of cabbage or daikon [horseradish] my body has ever the slightest smell of sulfur. But never as strongly as my colleague. I can smell it from 3 metres away...