Jamie ThinIn a famous episode of “Seinfeld,” Jerry complains that people constantly assume he’s gay because he’ single, obsessively neat ‚Äî and thin. As it turns out, at least part of that punchline may be anchored in fact.

A new study shows that gay men really are leaner than straight men. And conversely, it also found that gay women tend to be heavier than their heterosexual counterparts.

(Pictured: My thin, gay, ex-boyfriend)