Beer Rotten Eggs

Why does my fart smell like rotten eggs?
Do not drink beer, do not eat dairy, I like a very well-balanced diet (mostly organic) … what is causing my farts smell so horrible? Is it by eating more protein? My pita tend to be strong and do not smell, but now they are strong and very offensive!: (
In this case, here, mine too, but worse than the smell of rotten eggs. And I eat mostly organic. Perhaps the lack of preservatives, you agree? Just a passing thought.
Sing And Be Merry, Ren Fest 09 Part 2