The word is so new that my spell checker flags it. I heard about it on the radio yesterday. They're chemicals that upset your metabolism and tend to make you fat. (The Wiki definition has a lot more big words in it--look it up.) The first reference to the word I can find is Sept. 2009.
Leave it to our society to come up with yet another scientific thing to study. Carcinogens cause cancer. Obesogens cause obesity. Seems like we can't get away with anything lately.
Well, I found the timing of such a report interesting--given that my kitchen is literally full of what I'd call obesogens--chocolate covered cherries, peanut brittle, cookies, .....
Time for some New Year's Exercizogens. (Yeah--spell checker got that one too. Probably because I just made it up.)