Castor & Pollux Natural Ultramix Salmon Grain-Free & Poultry-Free Adult Dry Dog Food

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25-lb bag
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This recipe is ideal for active adult dogs (all breeds, all sizes) through their golden years. This grain-free & poultry-free recipe uses salmon as the primary ingredient, followed by other fish-based protein sources for optimal nutrition and great taste. Real pieces of minimally processed fruits and vegetables provide a natural source of antioxidants, vitamins, and fiber that you can actually see in the bag. And there are plenty of other powerful benefits that aren’t visible to the eye, including Omega 3 and 6 Fatty Acids that contribute to healthy skin and a luxurious coat, and a balanced calcium to phosphorous ratio that helps promote healthy bones and teeth. Natural Ultramix Grain-Free & Poultry-Free Adult Dog Food is made without artificial colors and preservatives, grains, or poultry.

Key Benefits

  • Natural salmon is the #1 ingredient, and then bolstered with other fish based protein sources
  • Provides a highly digestible, balanced diet great for dogs with sensitivities to poultry or grains
  • Omega 3 and 6 fatty acids contribute to healthy skin and luxurious coat, and calcium and phosphorus ratio helps support healthy bones and teeth
  • Include minimally processed fruits and vegetables that provide a source of antioxidants and vitamins
  • Made without corn, wheat, soy, artificial colors or preservatives with probiotics to support digestion

See all items by Castor & Pollux

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

Nutritional Info


Salmon, Salmon Meal, Herring Meal, Menhaden Fish Meal, Dried Peas, Dried Potato, Tapioca Starch, Canola Oil (Preserved with Mixed Tocopherols and Citric Acid), Pea Protein Concentrate, Tomato Pomace, Dried Bananas, Natural Salmon Flavor, Ground Whole Flaxseed, Brewers Dried Yeast, Dried Carrots, Monocalcium Phosphate, Salt, Freeze Dried Peas, Potassium Chloride, Dicalcium Phosphate, Dried Cranberries, Dried Sweet Potatoes, Fructooligosaccharide, Vitamins (Vitamin E Supplement, L-Ascorbyl-2 Polyphosphate, Vitamin A Supplement, Calcium Pantothenate, Niacin, Riboflavin, Vitamin B12 Supplement, Biotin, Thiamine Mononitrate, Pyridoxine Hydrochloride, Folic Acid, Vitamin D3 Supplement), Minerals (Zinc Proteinate, Iron Proteinate, Copper Proteinate, Manganese Proteinate, Calcium Iodate, Sodium Selenite), Choline Chloride, Rosemary Extract.

Caloric Content

3,524 kcal/kg, 375.2 kcal/cup

Guaranteed Analysis
Crude Protein 30.0% min
Crude Fat 15.0% min
Crude Fiber 4.5% max
Moisture 10.0% max
Calcium 1.2% min
Phosphorus 1.0% min
Vitamin E 75 IU/kg min
Omega 6 Fatty Acid 2.25% min
Omega 3 Fatty Acid 1.75% min

Feeding Instructions

Weight Daily Feeding (Cups)
3-12 lbs 1/2 - 1 cup
13-25 lbs 1 1/4 - 1 3/4 cups
26-50 lbs 2 - 3 cups
51-100 lbs 3 - 4 1/2 cups
100-150 lbs 4 1/2 - 6 cups
  • Add ½ cup for every 25 lbs of body weight over 150 lbs.

This formula is not intended as the sole diet for growing puppies, pregnant or lactating dogs – these dogs have special nutritional needs that require a different balance of protein, calories, and other nutrients. Help your dog maintain good body condition by monitoring food intake, providing exercise and visiting your veterinarian on a regular basis. Please adjust your dog’s feeding amount using the chart as a guide. The amount will vary by age, activity level, environment and breed. Always have a clean bowl of fresh water available for your dog.

Transition Instructions

To help your dog adjust to a new diet, we recommend a gradual change. Slowly introduce Natural Ultramix by mixing it in with the current food over the course of 7 to 10 days, gradually increasing the amount of Natural Ultramix while decreasing the amount of your dog’s current diet.

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Customer Reviews

133 reviews 133 Reviews 4.9 out of 5 Stars
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98% Recommend

98% of reviewersrecommend this product

4.9 / 5
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  • Good eats!

    By on

    Some years back, I reached the conclusion that my animals deserve the best food I can give them. That means something healthy AND tasty. This food seems to meet those requirements. No wonder it has such great reviews.

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  • Works for the Mals with digestion sensitivities...

    By on

    This is working well for my Mal who has had some digestion sensitivities; good value for the money. Grain and poultry free was hard to find...

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  • She really likes it, as do her anals

    By on

    Maggie Mae loves fruit. This has fruit. She likes carrots. This has carrots. Chicken and grain triggers her anals. This doesn't have chicken or grain. She's happy and the vet (who wanted her on a prescription diet), is satisfied.

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  • Great food

    By on

    Great food but pricey my dogs love it will clear their bowels in just a few minutes. Grear company to buy from.

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  • Ultramix salmon grain free and poultry free dog food

    By on

    This is best online service I have ever had. Ordered on Friday and received it in Saturday morning. It's also the only dog food I can buy for my yorkie. She is allergic to all the other dog food I've tried. Will buy again.

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  • Both my bullies love it

    By on

    Both my bullies finish this food within seconds and one of my dogs is really picky my other dog not so much. Stool is dark and hard. Coat is shiny and not stinky. I'll be sticking with this brand for awhile.

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  • This company and their food was recommended to me by a veterinarian and by a friend! My Corgi loves the taste and I love the benefits!

    By on

    After reading the label and seeing the ingredients, I decided to put my Corgi on OrganX. She is not a fussy eater at all, so flavors, gravies,and everything else the competitors use to entice owners and dogs to buy their food, doesn't matter. But what did matter was how her coat looks, how she healed from injuries, how much energy she has,and how healthy her food is! I do believe she eats better than I do!

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  • Looks like doggie trail mix. A real treat for pups!

    By on

    I've never seen my dog eat his food so fast. He absolutely loves the Ultramix. I used to give him the C&P Salmon, sweet potato, and pea mix that only had the dried kibbles, but when I was placing my last order I decided to switch it up and try the Ultramix. I love that this mix has dried fruit and veggies along with the kibbles. My dog normally likes veggies like steamed carrots and green beans, but I could never get him to eat fruit. He goes wild over the dried banana pieces in the Ultramix. I have even started substituting the banana chips from the food in place of his daily treats. I will definitely be ordering this again!

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  • Consistently Great

    By on Top 100 Contributor

    This is the only brand of food that my dogs will consistently eat eagerly. I love the ingredient list, the scent is inviting, and you can buy it in large bags. They don't get tired of it either, which is impressive. They also enjoy the duck recipe. I'll continue to buy C&P.

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  • Our dogs love it.

    By on

    I have two Morkies that love this dog food. They never turn their nose up when they get this brand. We have been using this brand for over 6 years.

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