Castor & Pollux Organix Grain-Free Organic Senior Recipe Dry Dog Food

  • List Price:


  • Price:

    $47.36 FREE 1-2 Day Shipping over $49

  • You Save:

    $2.63 (5%)

In stock
10-lb bag
  • 4-lb bag
  • 10-lb bag
cw-icon-heart Created with Sketch. Add to Favorites

Give your wise pup the grain-free superfood-packed nutrition he needs with the Castor & Pollux Organix Grain-Free Organic Senior Recipe Dry Dog Food. It’s formulated with organic, free-range chicken as the first ingredient, plus organic sweet potatoes, chickpeas, flaxseeds, and superfoods like organic blueberries, alfalfa, and coconut oil. Because it’s a great source of glucosamine and chondroitin which are essential for healthy cartilage, it’s perfect for older dogs with aging hips and joints. It’s enhanced with vitamins and minerals, and omega-3 and 6 fatty acids, plus probiotics to provide a complete diet for senior pups. The recipe is cooked in USDA-accredited organically certified kitchens right here in the USA, with never any soy, corn, gluten, chemical pesticides, synthetic fertilizers, antibiotics, growth hormones, artificial flavors, colors or preservatives.

Key Benefits
  • Senior formula is made with organic, free-range chicken as the first ingredient, plus organic peas, sweet potatoes, and chickpeas.
  • With special blend of nutrition-boosting superfoods including flaxseeds, blueberries, and coconut oil.
  • Great source of glucosamine and chondroitin to help support healthy hips and joints and mobility.
  • Provides a complete diet for senior dogs with lean protein, vitamins, minerals, omega-3 and 6 fatty acids, plus probiotics.
  • Cooked in USDA-accredited organically certified USA kitchens, with no soy, corn, chemicals, fertilizers, antibiotics, hormones, artificial flavors, colors, or preservatives.

See all items by Castor & Pollux

  • Item Number
  • Weight
    10.0 pounds
  • Brand


  • Breed Size

    Small Breeds, Medium Breeds, Large Breeds

  • Food Form

    Dry Food

  • Lifestage


  • Made in

    United States

  • Special Diet

    Organic, Grain-Free, No Corn No Wheat No Soy

Nutritional Info

Organic Chicken, Organic Chicken Meal, Organic Sweet Potatoes, Organic Chickpeas, Organic Peas, Organic Tapioca, Organic Pea Protein, Organic Sunflower Seed Meal, Organic Flaxseed, Organic Coconut Oil, Organic Chicken Fat (preserved with mixed tocopherols), Natural Flavor, Organic Chicken Liver, Organic Blueberries, Organic Alfalfa Meal, Organic Sunflower Oil, Salt, Salmon Oil, Vitamins (Vitamin E Supplement, Niacin Supplement, Thiamine Mononitrate, d-Calcium Pantothenate, Vitamin A Supplement, Pyridoxine Hydrochloride, Riboflavin Supplement, Vitamin D3 Supplement, Biotin, Vitamin B12 Supplement, Folic Acid), Choline Chloride, Minerals (Zinc Amino Acid Complex, Iron Amino Acid Complex, Copper Amino Acid Complex, Manganese Amino Acid Complex, Sodium Selenite, Calcium Iodate), Potassium Chloride, Dried Bacillus coagulans Fermentation Product, Organic Rosemary Extract.

Caloric Content

3,601 kcal/kg, 360 kcal/cup

Guaranteed Analysis
Crude Protein 26.0% min
Crude Fat 13.5% min
Crude Fiber 5.0% max
Moisture 11.0% max
Omega-6 Fatty Acid 3.0% min
Omega-3 Fatty Acid 0.30% min
Glucosamine 800 mg/kg min
Chondroitin SulFate 800 mg/kg min
Feeding Instructions

Using the chart, divide the total per day by the total number of times you feed your dog per day to determine the portion size for each meal. Use the information provided as an initial recommendation only and adjust when needed. Puppies and pregnant or nursing females may consume 2 - 3 times the recommended daily amounts. Keep a clean bowl of fresh water available at all times. Help your dog maintain good body condition by monitoring food intake, providing exercise and visiting your veterinarian on a regular basis.

Portions are based on a standard 8 oz dry measuring cup. For dogs over 100 lbs add 1/4 cup per additional 10 lbs.

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

To help your dog adjust to a new diet, we recommend slowly introducing Organix by mixing it in with the current food over the course of 7 - 10 days. Gradually increase the amount of Organix while decreasing the amount of your dog's current diet.


America's #1 Organic Pet Food

Castor & Pollux ORGANIX sets a new standard for pet nutrition as the only complete line of USDA organically certified pet food. The number one ingredient in every recipe is either organic free-range chicken or turkey blended with sustainably grown fruits and vegetables. Through careful sourcing and selection of the best-quality ingredients, ORGANIX has created "purposeful pet food" to make sure your pup gets only the good stuff in their bowl.

America's #1 Organic Pet Food
The Purposeful Pet Food Promise

The Purposeful Pet Food Promise

Pet parents want the same quality ingredients for their pets that they would choose for themselves. And that's why Castor & Pollux ORGANIX works hard to ensure that their ingredients are certified organic and sourced in the most responsible ways possible. They produce natural foods offer nutrient-packed superfood blends and are guaranteed safe for your pets with no corn, wheat or soy.

What It Means to Be Certified Organic

All ORGANIX formulas have USDA Organic certification, and are made with 95% or more certified organic ingredients. That's everything from the protein source to things like coconut oil, flaxseed, sweet potatoes and blueberries. These organic, non-GMO ingredients are free of chemical pesticides, synthetic fertilizers, artificial preservatives, and added growth hormones or antibiotics—all cooked in an organically certified USA kitchen.

What It Means to Be Certified Organic

Kibble Options for All Pups

There are plenty of menu choices for dogs of all sizes and ages in the ORGANIX dry food lineup:

Chicken & Oatmeal RECIPE

Chicken & Oatmeal RECIPE: Made with oatmeal and barley to help support healthy digestion

Healthy Weight RECIPE

Healthy Weight RECIPE: Has 20% less fat than the Chicken & Oatmeal recipe with the same protein levels

Grain-Free Chicken & Sweet Potato RECIPE

Grain-Free Chicken & Sweet Potato RECIPE: Offers sweet potato in place of grains and delivers omega-6 for skin and coat health

Grain-Free Small Breed RECIPE

Grain-Free Small Breed RECIPE: Made with probiotics and prebiotic fiber for digestive support

Grain-Free Puppy RECIPE

Grain-Free Puppy RECIPE: Features DHA, the omega fatty acid that supports a puppy's growth and development

Grain-Free Senior RECIPE

Grain-Free Senior RECIPE: Includes glucosamine and chondroitin for joint support

A Variety of Ways to Serve Wet Food

A Variety of Ways to Serve Wet Food

To suit every dog's taste, ORGANIX makes plenty of different wet foods that are satisfying and healthy. Give your four-legged friend exactly what he wants for dinner with a loaf- or pâté-style meal of chicken or turkey and wholesome fruits and veggies—there are grain-free options, too. If you've got a small breed, fill them up with Tiny Feasts in just the right size. For a gourmet meal, serve your pup Butcher & Bushel's hearty cuts of certified organic free-range chicken or turkey with delicious sides like sweet potatoes and apples.

Castor & Pollux

About Castor & Pollux

Natural Ultramix is made by Castor & Pollux, a company that's run by a team of experts in animal nutrition, organic and natural ingredients, and veterinary medicine. They're driven by a desire to give pet parents healthy, safe and nutritionally beneficial choices for feeding their furry family members. What began as two pet parents who wanted to provide the best food for their rescue puppy has evolved into an industry leader that sets new standards with purposeful pet food.

Shop Castor & Pollux

Customer Reviews
19 Reviews 19 Reviews 4.5 out of 5 Stars

89% Recommend

89% of reviewersrecommend this product

4.5 / 5

You've Already Reviewed This Item

Showing 1-10 of 19 Reviews

  • Glyphosate in old “Hollistic” cat food...

    By on

    I bought this brand after learning that Blue Buffalo tested high for glyphosate. Also got my fur babies off of that brand, Which we would mix in a little kibble with cooked chicken or beef. We now only feed them home cooked meals. I was very angry to learn that I was paying top dollar for ten years, for toxic food.

    You liked it! Something went wrong. Please try again later. Report
  • great quality

    By on

    Tried this line of organic some years ago but led to others as limited ingredient for various reasons. My current girl is fussy, wanted a higher quality senior diet. She has trouble chewing also but these morsels aren't totally tiny but smaller than most. Mixed with this brands "tiny treats" wet, she does well. Big plus, her stomach & poop is improving big time. Thanks as always Chewy for the fast delivery.

    You liked it! Something went wrong. Please try again later. Report
  • Best senior dry dog food.

    By on

    My dog got pancreatitis and has a very weak stomach. This is the best food I've found so far.

    You liked it! Something went wrong. Please try again later. Report
  • Organic dogfood

    By on

    After reading many horrifying stories about regular dog foods , nasty ingredients , somehow roundup finds it way into it the food supply that animals eat then it’s cooked up into a concoction linked to a lot of bad illnesses in pets. I decided to switch my dog’s food to organic she likes it.

    You liked it! Something went wrong. Please try again later. Report
  • Noticeable difference

    By on

    My cats love this food and it doesn’t smell so strong you have to keep it in the garage. I know it’s all good ingredients that I don’t have to worry about. 4 of my cats are males and they have a tendency to get urinary infections. Since the switch they are drastically reduced in number and frequency. Not to mention duration. Fantastic product.

    You liked it! Something went wrong. Please try again later. Report
  • Organix for senior dogs

    By on

    Out boy Rusty seems to be doing very good on this blend. Wanted to get him off of the processed dog food. So far he is pooping alot more. Does not seem to be bothered going him.

    You liked it! Something went wrong. Please try again later. Report
  • Used as a home cook supplement

    By on

    I add a varying amount along with a home-cooked protein & a dehydrated veggie base for my 8 yr old Aussie Cattle. Seems to compliment...& be well accepted in her diet.

    You liked it! Something went wrong. Please try again later. Report
  • Great quality dog food but needs to be in a bigger bag

    By on

    My older lab loves this food. The kibble size is just the right size. It’s lower on fat for her and She don’t eat much. Would like to see it in at least a 15 or 20 pound bag. It is only available in a 10 lbs and it is a little pricey.

    You liked it! Something went wrong. Please try again later. Report
  • Dog Likes It

    By on

    Our eight year old black lab has been very finnicky with all foods. Since my husband gives him Organix treats which our dog likes I thought to try the Organix dog food. It worked, he eats it! Chewy delivered quickly which was another good thing.

    You liked it! Something went wrong. Please try again later. Report
  • Love organic

    By on

    So far so good. My two older poodles love it. I think it may be a bit high in calories for my chubby girl.

    You liked it! Something went wrong. Please try again later. Report