I'm still struggling to get my fat cat's weight down . I've successfully got her onto Butcher's cat food and the tin says 3/4 of a tin a day but I'm presuming that is for unneutered cats and therefore she needs less? Say 1/2 a tin a day?
Our cat has half a tin per day - a quarter in the morning and a quarter at night - we top up with a few gluten-free biscuits if the last portion looks a bit small. He's 13 years old and sleeps a lot, but is a nice weight, not skinny.
Cat food manufacturers do seem to exaggerate the amount you need in the blurb on their tins.
mine are on butchers and they get 1/4 of a tin each in the morning and 1/2 a mug of biscuits in the afternoon and range in wheight from 3kgs to 6kgs and all normal wheight for their own sizes (two are big cats , two are dainty cats)