Even if they caused her to fart, there is no way a fart would make its way through her entire digestive tract in the few seconds that she started eating that potato. She had been cooking that one from a few hours earlier.
snnnnniiiiiiffffffffffff...oh yes my dear....sssnnnnnnnnnnnniiiiiiiiffffffff....quite pungent indeed...is that....dare I say....sssssssnniff...potatoes I smell?......sniff sniff....hmmm...yes...quite so my darling....sniff....quite pungent potatoes yes very much so