Castor & Pollux Natural Ultramix Grain-Free Duck, Sweet Potatoes & Peas Entree Adult Dry Dog Food

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25-lb bag
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Now you can provide some much needed variety in your dog’s diet without sacrificing healthy nutrition. Natural Ultramix Grain-Free Duck, Sweet Potatoes & Whole Peas Entree Dry Dog Food features all-natural duck protein, plus wholesome sweet potatoes and whole peas with essential nutrients. It’s even grain-free - ideal for dogs sensitive to grains.

Key Benefits

  • First ingredient is natural deboned duck, with real pieces of fruits and vegetables to help maintain a healthy digestive system
  • Contains probiotics to help support digestion and rich in antioxidants and essential fatty acids
  • Great for dogs sensitive to grains, while still craving the taste and getting the nutrients your dog needs
  • Tested throughout the production process to ensure quality and safety with no artificial colors, flavors or preservatives
  • Calcium and Phosphorus ratio helps support healthy bones and teeth

See all items by Castor & Pollux

  • Item Number
  • Weight
    25.0 pounds
  • Brand
    Natural Ultramix
  • Breed Size
    All Breeds, Small Breeds, Medium Breeds, Large Breeds
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Sensitive Digestion, Grain-Free, No Corn No Wheat No Soy

Nutritional Info


Duck, Turkey Meal, Chicken, Lamb Meal, Salmon Meal, Sweet Potatoes, Potatoes, Natural Favor, Peas, Potato Protein, Pea Protein, Bananas, Carrots, Apples, Cranberries, Blueberries, Organic Alfalfa, Salmon Oil, Salt, Minerals (Zinc Amino Acid Complex, Zinc Sulfate, Iron Amino Acid Complex, Manganese Amino Acid Complex, Copper Amino Acid Complex, Potassium Iodide, Cobalt Amino Acid Complex, Sodium Selenite), Choline Chloride, Vitamins (Vitamin E Supplement, Vitamin A Supplement, Vitamin B12 Supplement, D-Calcium Pantothenate, Vitamin D3 Supplement, Niacin, Riboflavin Supplement, Biotin, Pyridoxine Hydrochloride, Folic Acid, Thiamine Mononitrate), Chicken Fat (Preserved With Mixed Tocopherols), Dried Chicory Root, Yucca Schidigera Extract, Dried Lactobacillus Plantarum Fermentation Product, Dried Lactobacillus Casei Fermentation Product, Dried Enterococcus Faecium Fermentation Product, Dried Lactobacillus Acidophilus Fermentation Product, Gelatin, Rosemary Extract.

Caloric Content

3,740 kcal/kg, 460 kcal/cup

Guaranteed Analysis
Crude Protein 38.0% min
Crude Fat 17.0% min
Crude Fiber 3.5% max
Moisture 11.0% max
Calcium 1.0% min
Phosphorus 0.8% min
Vitamin E 50 IU/kg min
Glucosamine 1,200 mg/kg min
Chondroitin SulFate 1,200 mg/kg min
Omega 6 Fatty Acid 4.5% min
Omega 3 Fatty Acid 0.4% min

Feeding Instructions

Weight Daily Feeding (cup)
3 lbs 1/3
6 lbs 1/2
10 lbs 3/4
15 lbs 1
20 lbs 1 1/3
30 lbs 1 3/4
40 lbs 2
50 lbs 2 1/2
60 lbs 3
70 lbs 3 1/2
80 lbs 3 3/4
90 lbs 4
100 lbs 4 1/4

Every dog is a little different, so optimal feeding amounts may vary with age, size, and activity level. Please use the information adjust when needed. If feeding with wet food, reduce dry amount by 1/2 cup for every 6 oz of wet food.

  • For dogs over 100 lbs: Add 1/4 cup per additional 10 lbs.

Transition Instructions

Gradually mix in the new food over a 5 - 7 day period, increasing the amount of Natural Ultramix each day.

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Customer Reviews

124 reviews 124 Reviews 4.8 out of 5 Stars

97% Recommend

97% of reviewersrecommend this product

4.8 / 5
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  • Excellent food!

    By on

    I’ve struggled with my Aussie for two years now trying to find a food he actually likes. I thought I found a winner once upon a time but it gave him digestive issues and it was back to the drawing board. It’s been a constant drama to get him to eat - until I bought this food. He actually eats like a normal dog now! I don’t have to add anything on top, or mix half the contents of my fridge with it to get him to finish his bowl. He’s on his second bag now and his coat is noticeably softer, and his energy level is through the roof. He’s gotten into peak condition on CP Ultramix. So glad I tried this stuff!

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  • Fixed the brown tear stains

    By on

    I adopted a mostly white Lhasa mix dog and the tear staining was becoming worse the longer I had him. I tried the powder to sprinkle on the food and my dog wouldn't eat it. After some research I decided to pursue changes in diet, specifically grain free with duck and sweet potato as that has the least chance of aggravating alergies. The change is remarkable! The old stained hair is still growing out but it will get better with each grooming. I tried other brands, but none resolved as the goopy eyes. This did quickly and my dog LOVES the food. He's happy and I'm ecstatic!

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  • Healthy and flavorful!

    By on

    I have two labs, they'll eat anything but one of them has some type of allergy so I keep the ingredients down and omit grains. This food fits the bill, made in America, and good value here at Chewy. Like I said...they'll eat anything but I have to admit they seems to really like this stuff.

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  • Great dog food!

    By on

    We switched to this dog food because Fromm was no longer available through chewys. We had been fighting a yeast infection on our swissys skin for a very long time and tried everything. Since we switched to this food her skin has almost completely cleared and her tummy and stools are great!!! Chewys not carrying Fromm actually ended up a blessing for us!! She also loves this food, she eats it as fast as I put it in her bowl!! Love it!!

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  • Awesome! You can see little pieces of vegetables and fruit in the mix.

    By on Top 500 Contributor

    This is a 5 star product. Apparently the one food my female (a "diva") can and will eat that doesn't make her throw up. I am impressed with the ingredients as well as the quality.

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  • Great food

    By on

    Love this food. My furry kids coats are beautiful and shiny. They like the taste and the price is right! Great service also!!!

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  • Dogs love it

    By on

    I have 2 huskies and they love it! Ren used to have bad skin and I always thought it was due to outdoor allergies. Ever since we switched to this food his skin has been clear! Maya used to leave Brown spots on our lawn, but since switching to this brand she no longer does that! Happy dogs happy mom!

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  • Their Favorite!

    By on

    All four of my dogs love this! With other dry food I make a gravy with a little bit of canned food to pour on the kibble to make it more appealing. No need to do that with Ultamix. This is a hit with all of my rescued girls. Plus Ultramix contains the quality ingredients that I look for.

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  • Dogs dont lie

    By on

    My dogs were exited to try their new food. A friend told me her dogs stopped being itchy after being on this food. Im hoping for that too.

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  • Only because i cant give it no stars

    By on

    My dogs hate it going back to American journey the akita flipped the bowl my pit wont eat it was very surprised good brand

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