I've been vegetarian for almost a year and vegan in 2010.  I've noticed no change in sex drive. 

My fiance however is not feeling the same.  He's been vegetarian since September and he's noticing a drop in libido.  This is not necessarily a bad thing.  I think it probably puts him in the 'normal' range for most people.  Nuff said there...

So he's wondering if it has anything to do with being vegetarian.  When he's at my place, he eats vegan except the cream in his coffee in the morning.

I told him I'd CHECK THE VEG BOARDS!  My answer to all things vegan.

I really don't know. 

Has being vegetarian or vegan changed anyone's sex drive?  Better?  Worse?