tight pants

i have a low % of body fat but i still have low ab fat that i would like to get rid of. i eat alot of foods that maybe i should not if it were that important to me. but i have to just i order to make sure that i hang onto my gains. i train hard to get the gains that i do have and they do not come  fast. it is a shame to lose any of it if i have to. my pants are starting to get tight though  i do not like that. i can get rid of body fat