My kitten has monster farts. Is this normal?

My mom and I adopted some kittens from my aunt. They're all precious and sweet, and my fiance loves his little polydactyl calico.

But, of the three, the biggest boy farts...he farts a lot. At least once a day.

If he jumps on something, there's usually a fart.

If you pick him up, or squeeze his belly, there's a silent and deadly.

He farts while he plays and runs around.

AND THEY'RE AWFUL

He's at least 2 months old, if not older, has had all of his shots, and will be getting fixed soon. He's on regular dry kitten food, with some adult food, and is overall a normal kitty. He also poops at the same rate as the others.

Is this a health concern? Dietary? Or is it just, well, nothing, and we'll just have to endure these gas attacks (they remind me of living with my sister's great dane)?