I looked up Platinum Performance.
Flax Seed, Flax Oil, Rice Bran, Whey Protein, Sunflower Seed, Soy Flour, Cane Molasses, Performance Minerals™, Calcium Carbonate, Bio-Sponge™, Dl-Alpha-Tocopherol Acetate (source of Vitamin E), Ascorbic Acid, Glucosamine Sulfate, Chromium Yeast, Selenium Yeast, Zinc Yeast, Pine Bark, Uncaria Tomentosa, Aloe Vera, Docosahexaenoic Acid , Acetyl-L-Carnitine, Magnesium Oxide, Ferrous Sulfate, Calcium Iodate, Calcium Borate, Maganese Sulfate, Copper Sulfate, Cobalt Sulfate, Lysine, Arginine, Glutamine, Taurine, Carnitine, Vitamin A, Choline Chloride, Niacin, Vitamin K, Calcium Pantothenate, Riboflavin, Vitamin B-12, Thiamin, Pyridoxine Hydrochloride, Folic Acid, Biotin, Natural Flavors. No artificial preservatives added.
I'm wondering what "Performance Minerals" and "Bio-Sponge" is.
For me, the reason I switched to raw was to get to a more natural diet for my cat. That meant as little carbs, grain & plant-matter as possible. It also meant feeding a mix of raw fresh organs, bone, and meat so that supplementation
wouldn't be necessary in a "hamburger-helper-just-add-meat" kind of way.
IMO, it's just switching out one commercial food for another, really.
Personally, if supplementation is necessary, I'd rather just buy singular vitamins from a supermarket and supplement that way. At least I have control over what is being supplemented, instead of a "one size fits all" multivitamin kind of supplement like this one that contains other stuff I don't like.
I agree that it seems similar to Missing Link, which I personally feel contains too many plant-derived nutrients for a raw diet, and other stuff I don't like. I know that "raw" and "grain-free" aren't the same thing, and that many are okay with using raw plant-sources in their raw diets - but for me, it's not something I advocate or do myself.
I think it gets points for convenience, and perhaps the novice raw feeder who isn't quite sure how to feed a whole and balanced raw diet yet, but I can't say I'd use it or recommend it for long-term.