Ok, so my cat Tigger has become FAT. He is not that old and ever since he was neutered he gained alot of weight (of course). He is probably 9-10 lbs and is offered dry food free-choice. The reason I give him free choice is because he doesn't eat more than 1/2 cup a day, which is fine for his size (and he gets destructive if the food bowl is empty). He has been checked for thyriod/endocrine issues (even though hypothyriodism is rare in cats anyways) and all was fine. I have tried the high protein foods and the lowest-fat content premium foods (and I mean EVERYTHING, lol). However he is not losing any weight at all. I think I may want to try an RX diet or something just to get his weight down (and then switch off). Just FYI--canned food is not an option and wouldn't work for my situation, so dry food is what I'm looking for.
Options:
Science Diet R/D
Ingredients: Chicken By-Product Meal, Brewers Rice, Corn Gluten Meal, Powdered Cellulose 18.8% (source of fiber), Chicken Liver Flavor, Soybean Oil
GA: 32% CP/ 7% fat
Royal Canin Beauty & Fit
Ingredients: Chicken meal, corn gluten meal, rice, corn, chicken fat, chicken, natural chicken flavor, pea fiber, rice hulls, beet pulp, dried brewers yeast, soya oil, salmon oil, salt
GA: 37%CP/ 9% fat
Royal Canin Calorie Control High Protein
Ingredients: Chicken meal, rice, corn gluten meal, cellulose fiber, natural flavors, chicken fat, potassium chloride, beet pulp, dried brewers yeast, salmon oil, salt
GA: 38%CP/ 7.5% fat
These are amongst the foods I am picking from.....honestly, the best looking one is r/d....what would you pick between these? Have you had any experience with them?