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

List Price: $82.99
Price: $51.99 & FREE 1-2 Day Shipping
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25-lb bag
  • 5.5-lb bag
  • 25-lb bag

Product Description

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

  • #1 ingredient is natural deboned duck
  • Contains probiotics to help support digestion
  • Rich in antioxidants and essential fatty acids
  • Grain-free for dogs sensitive to grains
  • No artificial colors, flavors or preservatives
  • Tested throughout the production process to ensure quality and safety
  • Made with love in the USA with no wheat, no corn, no soy

See all items by Castor & Pollux »

Learn more about Castor & Pollux from our team of experts
Item Number 90487
Special Diet
  • Sensitive Digestion
  • Grain-Free
  • No Corn No Wheat No Soy
Food Form
  • Dry Food
  • Adult
Country of Origin
  • United States
  • Natural Ultramix

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Important Information


Deboned duck, turkey meal, lamb meal, salmon meal (source of omega 3 fatty acids), sweet potato, peas, potato, duck fat (preserved with mixed tocopherols), potato protein, pea protein, natural flavor, bananas, carrots, apples, cranberries, blueberries, organic alfalfa, salmon oil, minerals (salt, 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), vitamins (choline chloride, vitamin E supplement, vitamin A supplement, vitamin B12 supplement, d-calcium pantothenate, vitamin D3, niacin, riboflavin supplement, biotin, pyridoxine hydrochloride, folic acid, thiamine mononitrate), 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, rosemary extract

Customer Ratings & Reviews

Rated 4.8 out of 5 by 68 reviewers.
Rated 5 out of 5 by A good fit Food Product awareness is something that not many owners have. Typically, you will not know which foods are better than others until you have shopped around for a while. I was one of those shoppers. I kept looking at many name brand companies and kept scratching my head on which to feed my beloved dog. From seeing reviews online and reading customer feedback on different foods, I ended up going with 2x 25lbs bags of Merrick Grain-free Real buffalo with sweet potatoe as my introduction higher end food for my dog, which is a 1.5yr old Pitbull. Before this, I had her on Purina dog food which she loved. However, it turned out that food was not the greatest because of the ingredients it was made from. Again, this is when I started to be more aware of what I was actually buying for my dog. After much, much reading, I came to the conclusion that I did not want any food that came from any of the Diamond plants. They have had too many recalls, and they make a huge amount of different dog food, that gets relabeled. After making sure that Merrick was not made by Diamond, I went ahead and bought it. I transitioned my dog from her old food to the Merrick in a span of 3 weeks. I noticed that although I was only doing 25%:75% Merrick:Purina respectively, my dog was not reacting well to it. I extended the amount of time to do the transition because of this, and after the 3 weeks, after she was fully on the Merrick, she was still not doing well on it. I noticed that she seemed more lethargic. She actually lost some weight, and lastly, she was not enthusiastic about eating Merrick. This is coming from a dog that had never, and I do mean never, left a morsel of food in her bowl before. To the point where I had never seen a dog eat anything that was put in front of her. That is when I started getting really suspicious about the Merrick food. It did not smell bad or anything, but my dog was having loose stool after a month of feeding her this food. Needless to say, I didn't finish with feeding both bags of the Merrick. At the time, I also had my brother's dog at my house, another pitbull, and he showed some of the same problems, loose stool, loss of appetite, weight loss, and I noticed after a month on the food that they were both getting bumps on their skin. To make a very long story short, I went back to researching and reading, and while the Castor & Pollux is just a few dollars more per bag, I chose to give it a try. It turned out to be a great decision. Shortly after switching over, she started devouring her food again. She started gaining weight (I did follow the advised feeding amount on both bags, which just happens to be the same amount on both), and her stool was nice and uniform after only 3 days of being on this food. You would never imagine that uniform, solid dog stool would put a smile on your face, but it did with me. My dog is back to being her old self, and I'm happy I chose to go with another food. This is not to say that the Merrick brand is a bad one, because every dog reacts differently to different food, but our dog(s) did not react well at all to the Merrick food. It is unfortunate because I spent well over $100 on both bags (locally) and I felt super let down by that company. I will continue to order Castor & Pollux for my dog from now on, and hopefully I will find another food which she likes in order to rotate the food so that she does not have to eat the same thing over and over again. Thank you Chewy for the great prices, great shipping, and affordable prices!!! August 5, 2014
Rated 5 out of 5 by Great for my picky dog! My dogs are such picky eaters. I'd fed them another premium brand for years, and they liked it up until 6 months ago. Suddenly they started snubbing their noses at it, so it was off to find a great food that they loved! I tried a few brands before stumbling on this, none with success. I brought this home and my 2 dogs, not to mention my cats, were all over the bag. I have an Airedale mix who is picky, sometimes he will go days without eating. This stuff gets him so excited for mealtime! He even finds me whenever he thinks that it is his mealtime! My Lab mix has serious skin allergies and this has been great for his skin. Their coats are gorgeous, their bellies are happy, and their stools are great. What more could a pet mom want?! April 30, 2015
Rated 5 out of 5 by Castor & Pollux Natural Ultramix Grain-Free Duck, Sweet Potatoes & Peas Entree Adult Dry Dog Food this is one of the top of the line dog foods as far as i am concerned - i continually do research and keep up with finding the best quality dog food. the ingredients are excellent and what they keep out is as important as what goes in. the price is pretty good considering it is top of the line and i have found ,to my pleasure the price is the best here at my supplier (where i thought i was getting the best price) was backordered, so i looked elsewhere and found i only wish castor and pollux would offer a discount for autoship @ chewy. because i would !!! January 20, 2015
Rated 5 out of 5 by HIGHLY RECOMMEND! I have six rescue dogs (Amstaffs, Pit, Shar-Pei mix, Corgi-Doxi mix, Rat Terrier mix) and they vary in age (2 to 10+). They all LOVE this food and appear to be thriving. The latest blood work (during dentals) for the older gals and boy came back as excellent. The C&P packaging keeps this food fresh! It has all the nutrients I believe are important to maintain excellent health and, it's grain free. There's been so much talk regarding arsenic levels in rice, I'm now afraid to use any recipe containing rice. This particular Duck formula appears to be the very best, most affordable choice to meet our needs! My only complaint is that the price for a 30 lb bag has increased $5. It's still the most nutritious food I can find under $2 a pound and, as I said, they ALL absolutely LOVE the C&P grain free Duck recipe. It can be very difficult to find in stores. So, I'm on the auto-ship program because Chewy still does have the best price, guaranteed availability, free shipping and excellent customer service! I honestly don't know what more I could possibly ask for..... ;-) February 27, 2014
Rated 5 out of 5 by Loaded with everything my dogs need I recently switched my labs to Castor & Polluck because of their changing nutritional needs. I had them on another high quality food, but it lacked many of the nutrients and ingredients that Castor & Polluck offered. Not to mention, I have a very picky eater in the bunch who did not like dog kibble, until I switched. Had to hide the kibble in people food. Not anymore. She eats it out of my hand. Great product December 16, 2013
Rated 5 out of 5 by Best. Kibble. EVER. I love this stuff! It's premium, high grade, good enough for humans type dry dog food. Even better? My goofy picky Labs (I know, "picky Lab" is something of an oxymoron,) LOVE THIS STUFF. And that delivers it to my door? All the better. Chewy can count on my return business, as can Castor and Pollux June 3, 2014
Rated 5 out of 5 by Great grain and chicken free food! After extensive research for a grain and chicken free food, I found Castor & Pollux after trying Acana Regionals Pacifica. We're in the slow transition period to the C & P, but so far so good. My pup loves it! Great food! December 21, 2014
Rated 5 out of 5 by Best in Breed This food is the best of the best! My yellow labs thrive on it. They not only love it as their meals but also get a little scattered in their kennels when I leave the house along with other treats and always go for the kibble first! August 26, 2014
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Questions? Call our friendly customer service team anytime. We're here 24 hours a day! 1-800-67-CHEWY (672-4399)