What gases is a f**t made from?

Question

Now we all know that releasing gas is just a normal function of our body. But I was wondering, what is the gas that we release composed of?

Answer 1

Mostly methane. The odor comes from a pinch of H2S. There are other gases, but I do not know their names.

Answer 2

I agree fully with the above poster.

It should also be noted that the smell spreads quickly due to the low molecular weight of methane....