tl;dr: stainless steel reacts with the stuff that makes onions, garlic and fish smell, thereby neutralising that particular odor. So scrubbing yourself with st

tl;dr: stainless steel reacts with the stuff that makes onions, garlic and fish smell, thereby neutralising that particular odor. So scrubbing yourself with stainless steel can replace soap but not deodorant. Unless you're literally rubbing steel particles onto your skin there's no lasting effect, it just kills the smells (if they are sulfur-based). EDIT: of course this assumes you trust the article to be scientifically accurate.