Royal Canin Ultra Light Canned Weight Loss Cat Food Review

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Protein: 9.0% (min) | Fat: 1.6% (min) | Fiber: 2.1% (max) | Moisture: 84.5% (max)

Rated (at the time of writing) as our number one suggestion for the best weight loss cat food, it goes without saying that this formula is SUPER effective. Royal Canin (well known as one of the best cat food brands) have pushed the bar even higher again, creating a high-protein, low-calorie formula that helps cats lose weight in a controlled, balanced manner.

As for flavor, cats love this food as much as a regular formula, which is rare. The thin slices in gravy do wonders to release aromas that keep cats coming back for more.

“Ultra light” really is a fitting description since this formula comes in with one of the lowest-calorie counts you’ll find in over-the-counter cat food. We’ll get into more detail on that and the feeding guidelines shortly, first, let’s look at what’s in it.

Nutritional Information

Designed to offer a balanced, complete diet with a minimal amount of calories, this formula focuses on protein above all else. Chicken, chicken liver, pork, and pork liver make up the bulk of the animal-ingredient content, and the fat level still remains as low as 1.6%. Protein comes in at 9.0%, or in dry-matter terms, 58.0%!

On top of these super-impressive macronutrient ratios, the food remains packed with nutrients and vitamins to support healthy living. The inclusion of L-carnitine helps to fight off weight gain by promoting natural fat burn.

Caloric Density and Feeding Guidelines

635 kcal/kg, 54 kcal/3oz can

Yes, you read that right; 54kcal per 3oz can. Staggering! It’s amazing that Royal Canin can pack a healthy diet into such a low-calorie count formula.

The feeding guidelines for foods with such extreme deviations from the normal calorie contents should be strictly adhered to. You can find the full list on the Royal Canin website under the feeding guidelines tab, but here are a few suggestions that may be helpful:

WeightInactiveNormalActive
4.4 LBS1 3/4 cans2 cans2 1/2 cans
6.6 LBS2 1/4 cans2 3/4 cans3 1/4 cans
8.8 LBS2 3/4 cans3 1/4 cans4 cans
11.0 LBS3 cans4 cans4 3/4 cans
13.2 LBS3 1/2 cans4 1/2 cans5 1/4 cans
15.4 LBS4 cans5 cans6 cans
17.6 LBS4 1/4 cans5 1/2 cans6 1/2 cans
19.8 LBS4 3/4 cans6 cans7 cans
22.0 LBS5 cans6 1/4 cans7 3/4 cans

Our Verdict

This formula is Royal Canin at their usual impressive selves. It is an incredibly low-calorie food that has to be one of the most effective weight loss cat foods ever produced.

Pairing this food with a cheaper dry weight-loss should yield impressive weight loss results without breaking the bank. We can’t sing it’s praises highly enough.

Ingredient List

Ingredients correct at the time of writing. Please check the retailer’s product page or the packaging before purchasing; ingredients lists are subject to frequent change.

Water Sufficient For Processing, Chicken By-Products, Chicken Liver, Pork Liver, Pork By-Products, Wheat Gluten, Gelatin, Powdered Cellulose, Natural Flavors, Pork Plasma, Wheat Flour, Modified Corn Starch, Potassium Chloride, Guar Gum, Calcium Sulfate, Sodium Tripolyphosphate, Taurine, Choline Chloride, Citric Acid, Carrageenan, Vitamins [Dl-Alpha Tocopherol Acetate (Source Of Vitamin E), Thiamine Mononitrate (Vitamin B1), Niacin Supplement, Biotin, D-Calcium Pantothenate, Pyridoxine Hydrochloride (Vitamin B6), Riboflavin Supplement, Folic Acid, Vitamin B12 Supplement, Vitamin D3 Supplement], L-Carnitine, Trace Minerals [Zinc Proteinate, Zinc Oxide, Ferrous Sulfate, Copper Sulfate, Manganous Oxide, Sodium Selenite, Calcium Iodate], Magnesium Oxide.

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