Our cat is a bit fat, not too bad yet but the vet said to switch to a lower calorie dried food. I've started to weigh his food and give him his regular dried food but he is hungry. He is a fussy cat and I've switched brands once and it took a long time, will reducing his portions work or will he just get cross. He only has dried never really liked wet, used to just lick the jelly off. I do think he will start eating more of the local wildlife if he is hungry. He has always been fed on demand his previous owner did that.