There is a diet created by Monash University researchers called the Low FODMAP diet. Essentially FODMAPs are harder to digest sugars that exacerbate GI symtpoms, like farts and cramps. Most people won't see or feel much of a difference but those with GI issues (or those with a fart journal) may see a difference with the diet

However it is a rather strict diet to keep at first until you start reintroducing foods to figure out which foods cause the gas, so I would only recommend it if the gas is extreme or there is cramping or other GI related symtpoms.

I was on the diet for over a year by recommendation of a gastroenterologist and can confirm that after some time the farts were kinda rare and not the smelly kind. But like others have mentioned, farts are natural and cannot be eliminated.