I'm not sure if I'm looking at the right food, but the Optimal Care I found doesn't even come close to any of the top brands (NV Wellness Core, Evo, etc)
http://www.hillspet.com/products/sd-feline-adult-optimal-care-original-dry.html Protein- 35%
Fat- 22%
Fiber- 1.7%
The carb content is 35% as per the website.
Chicken, Whole Grain Wheat, Corn Gluten Meal, Pork Fat, Chicken Meal, Dried Beet Pulp, Brown Rice, Chicken Liver Flavor, Calcium Sulfate, Lactic Acid, Potassium Chloride, Fish Oil, Soybean Oil, Iodized Salt, Choline Chloride, Taurine, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Riboflavin Supplement, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin D3 Supplement), minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Oat Fiber, Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene, Dried Apples, Dried Broccoli, Dried Carrots, Dried Cranberries, Dried Peas.
As per the MoreDooks Criteria, it would score 34.07, which places it in the low yellow, between Nutro Natural Choice Kitten, and NV Prarie Chicken and Rice
Ferrets: Wesley, Percy, Owen -rip Bandit-
Bettas- Kitty, Pip, and Logan
Sun Conure- Kita
Gerbils- Piper and Tailer