Blue Buffalo Wilderness Grain-Free Dry Cat Food: Review

Blue Buffalo Wilderness Grain-Free Dry Cat Food
Image courtesy of Blue Buffalo

Blue Buffalo's color switch of the life source bits seems to have turned the trick for some cats. We rate the ingredients 4 1/2 stars, because although grain-free, Blue Wilderness is not completely carbohydrate-free, making it questionable for cats with the potential for feline diabetes.

The Blue Buffalo brand is "Inspired by the diet of the lynx, a tireless hunter and wild relative of our domesticated feline friends." The food can be served dry and crunchy, right from the bag for cats to enjoy the delicious nutrition nuggets and LifeSource Bits right from the bag.

You can also add warm water and mix to fully release aroma and enhance the flavors.


  • Manufactured by the Blue Buffalo Pet Food Company
  • Contains LifeSource® Bits a blend of vitamins, minerals, and antioxidants, cold-processed to retain nutrient value
  • Packaged in 2.5 lb., 5.5 lb., and 11-pound bags.


  • LifeSource® Bits are "cold form" processed to prevent loss of nutrients through heat
  • Test cats love the flavor
  • Contains NO by-product meal, no corn, wheat, or soy


  • Contains whole potatoes, whole sweet potatoes, oatmeal, and other carbohydrates
  • Somewhat expensive for an 11-pound bag

Guide Review - Blue Buffalo Wilderness Grain-Free Dry Cat Food

With three out of four of my cats overweight to some degree, I came across Blue Buffalo Wilderness Grain-Free. I had reviewed Blue Buffalo's Blue Spa Select Chicken & Brown Rice Formula a few years ago. Although my cats ate that food, they picked out and set aside all of the small bright blue "life source bits," losing the potential value of the nutrients and anti-oxidants.

Aside from the fact that the Blue Buffalo Wilderness is grain-free, the "life source bits" are now a darker blue, making them visually less obvious, and my cats scarf them up with the rest of the food.

My motivation for purchasing Blue Buffalo Wilderness was an obese cat who was 23 pounds at last weigh-in.

My veterinarian had sold me a bag of "weight-management" dry food with the first listed ingredients I would not choose in any cat food: poultry by-product meal, soy protein isolate, corn gluten meal, soy flour, animal fat preserved with mixed-tocopherols (from Vitamin E) and corn starch.

Top Named Ingredients in Blue Buffalo Wilderness include deboned chicken, chicken meal, turkey meal, potato starch, fish meal (source of omega-3 fatty acids), chicken fat (preserved with mixed tocopherols), peas, whole potatoes, flaxseed (source of omega-3 and 6 fatty acids), natural chicken flavor, alfalfa meal, whole carrots, whole sweet potatoes, cranberries, blueberries, barley grass, dried parsley, dried kelp and taurine. Also, for weight control, compare the "prescription food's" 592 K Cals/Cup to Blue Buffalo's 391 K Cals/Cup. 

Although I would recommend the Wilderness Grain Free dry food to anyone seeking a grain-free cat food, if a cat suffers from feline diabetes or any other serious condition, consult with your veterinarian before making any dietary changes. To transition your cat to Blue Buffalo, the manufacturer recommends first mixing 25 percent of Wilderness with your cat's old food, and then gradually increasing the proportion of new food over the next fourteen days.