If you’ve ever wondered what the difference is between a chewable vitamin and a chewable vitamin for dogs, or why a pet parent would supplement their dog’s diet with antioxidants, you’re not alone. While it’s clear that antioxidants are important for human health, they’re also essential for the health of our canine companions, especially as they age.
To help you select the best dog antioxidant supplements for your pooch, we’ve rounded up our top picks, plus why they’re so important, below.
Our Editor’s Best Dog Antioxidant Supplements Reviews
SaleBestseller No. 1
Natural Dog Company Dog Food Topper, Antioxidant Berry Vitamins & Superfood Meal Topper Supplement, Holistic Nutrition, Dog Food Seasoning, Immune Support, All Breeds, Ages, & Sizes of Dogs, 8oz Bag
- POWERFUL ANTIOXIDANT FOR A HEALTHIER DOG: Is your dog not getting the full benefits from their daily meals? Transform their meals with our Antioxidant Berry Granules, a nutrient-dense dog food topper that fights free radicals, supporting your dog's overall well-being. Go beyond generic with a topper that provides superior nutrition, helping your dog live a vibrant, active life.
- ANTIOXIDANT-RICH SUPERFOOD: Our Antioxidant Berry Granules features a powerful blend of blueberries, cranberries, raspberry, strawberry, and blackberries that work synergistically to enhance your dog’s immune system, protect their skin, and ensure a lustrous, healthy coat. Packed with natural vitamins and minerals, this dog health booster provides holistic nutrition with every meal, supporting your dog’s overall well-being.
- REAL FOOD, REAL HEALTH, COMPLETE NUTRITION: Elevate your dog’s diet with our Antioxidant Berry Granules, packed with over 60 essential nutrients from real foods. They’re a complete source of essential nutrients like vitamins, minerals, and amino acids derived from real fruits, ensuring overall wellness. This dog superfood supplement promotes immune support, healthy skin, and a shiny coat, making it the ultimate choice for holistic dog nutrition.
- SUPPORTS AGING DOGS WITH ANTIOXIDANTS: Senior dogs require specialized care that general multivitamins can't provide. Our Antioxidant Berry Granules are rich in antioxidants that protect aging cells, strengthen the immune system, and promote joint health and cognitive function, giving your older dog the focused support they need to live a vibrant, healthy life.
- WET OR DRY, LOVED BY PICKY EATERS: Naturally flavored with the taste of real berries, our Antioxidant Berry Granules are highly palatable, making them irresistible to dogs, even picky eaters. Ideal for wet or dry food, they retain moisture to prevent dry mouth and can be rehydrated with cold water without losing any nutritional benefits. This versatile dog food topper enhances both flavor and nutrition.
$19.95
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Bestseller No. 2
Amazing Turmeric for Dogs Curcumin Pet Antioxidant, Eliminates Joint Pain Inflammation, 120 Chews
- Taste great, no mess, small and easy to chew bite-sized bacon and beef liver flavored tablets your pet will love, perfect treats for dogs with sensitive stomach who hate taking pills and pouches; Chews won't harden into clumps like powder, cause bad breath, make your house smell, or spill on your kitchen counters like messy liquids, powders, and hard to open capsules; OK w/ vitamins, Omega 3 fish oil salmon, probiotics, glucosamine, chondroitin, msm; No refrigeration needed
- No byproducts, no allergies, Made in America and hypoallergenic; Works great for allergy prone dogs; No wheat, corn, maltodextrin, animal digest, grains, soy, egg, potato, shrimp, crab, shark, gluten, avocado; Proprietary canine custom formulation provides holistic nutritional boost for puppies, seniors, little or large breed; Made fresh with care in small batches in a Gmp organic facility; Ingredients 3rd-party verified for purity & correct dosage
- Make your dog look & feel great with the ultimate chewable turmeric curcumin anti-oxidant supplement for strong joints & cartilage, heart, brain, hepatic liver; Natural food pharmaceutical grade anti-inflammatory formula helps with pain, rheumatoid arthritis, hip dysplasia relief, post antibiotics medicine; Supplements dogs diet for total health and wellness, immune support, puppy, adult, senior pets
- Instant Money-Back - Get your dog (or cat) off drugs & medicines, relieve their suffering, let them live naturally & pain free; Up to 25 lbs: 1 tablet daily; 25-50 lbs: 2 tabs; 50-75 lbs: 3 tabs; 75-100 lbs: 4 tabs; Easy to adjust dosage as needed for dog's specific conditions; If you don't see massive improvement in your dog's health within 28 days using these herbal antioxidants as directed, get a full refund and keep the bottle; No need to send it back!
- Your Dog Will Love it! Select this affordable, powerful turmeric curcumin dogs and cats love to eat. Scroll back up and click the Cart button at the top of this page to claim your bottle now.
$21.97
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SaleBestseller No. 3
Natural Dog Company Skin & Coat Chews, Salmon & Peas Flavor, Dog Vitamins and Supplements for Healthy Skin and Coat, Itch Relief for Dogs with Allergies, Biotin, Vitamin E, and Omega 3, Antioxidant
- SUPPORT HEALTHY SKIN & A SHINY COAT: Our Skin & Coat chews are rich in Omega-3s (EPA & DHA) from salmon oil, which help nourish the skin, maintain a glossy coat, and promote skin comfort. Say goodbye to the struggle. Hello to a happy, tail-wagging pup!
- SHED SUPPORT, NOURISH SKIN & COAT HEALTH: Tired of brushing out loose fur or seeing hair on your furniture? Excessive shedding and dry flakes are signs your dog’s coat needs support. Our Akin & Coat chews help to reduce excessive shedding and support a healthy skin barrier with essential fatty acids, and linoleic acid, promoting a soft, flake-free coat.
- SUPPORT SKIN & COAT HEALTH FROM THE INSIDE OUT: Sun’s out, coats out. A dry, flaky coat is often a sign of nutrient gaps. All the nutrients inside our chews work together to enhance fur strength, reduce breakage, and deliver a visibly shinier coat that your dog will wear with confidence.
- WHOLE-BODY WELLNESS: More than just a skin remedy, our chews support your dog from the inside out. Fortified with Omega-3, 6, and 9 plus antioxidants, they lubricate joints, support heart health, and bolster immunity. Keep your best friend active, limber, and feeling as good as they look.
- PICKY-EATER APPROVED & 100% NATURAL: Dogs drool for the real salmon flavor in these soft chews. No more hiding pills in peanut butter. Our grain-free, NASC-certified formula contains no artificial flavors or preservatives, only premium natural ingredients you can trust. Made in the USA under strict quality standards (cGMP) for safety.
$17.99
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Bestseller No. 4
Zesty Paws Cranberry Supplement for Dogs - Bladder Control for Dogs - Urinary Tract Support - Cranberry Chews - Immune & Gut Support - Chicken - 90 Count
- Urinary Tract for Dogs – Urinary Tract Bites are packed with ingredients that support kidney, bladder, and immune system support for dogs of all ages.
- Featuring InCRANable – Each chew features this premium cranberry concentrate, which is an antioxidant used to promote urinary tract function and provide bladder support for dogs
- Bladder & UT Health - Each cranberry soft chew provides kidney support for dogs and urinary tract support for dogs to maintain normal function for the kidney and urinary tract
- Immunity + Digestive Support - The Astragalus Root has properties that may help support a healthy immune system for dogs, while Marshmallow may help support bowel health and digestion for dogs
- Treat Your Pup to Pawsome Ingredients – The strength of this cranberry chewable for dogs formula is in the DMannose, Marshmallow, Cranberries, and Nettle Root to support kidney and UT function.
$32.97
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Bestseller No. 5
Vet Classics CAS Options Extra Strength Immune Support for Dogs, Cats – Pet Health Supplement, Dog Antioxidant Care – Extra-Strength Dog Supplement Formula – 120 Chewable Tablets
- DOG IMMUNE SUPPORT: Fuel your pet with the support he needs to stay healthy and support his immune system.
- PET HEALTH SUPPLEMENT: Give your furry friend the immune support he needs with these health supplements for dogs and cats that include some natural ingredients such as maitake mushrooms, shiitake mushrooms, turkey tail mushrooms and reishi mushrooms.
- PET IMMUNE SUPPORT FORMULA: A healthy immune system is essential for dogs and cats. Ensure your furry friend remains active and healthy with these pet health supplements that support normal inflammatory response while supporting T-helper cell activity.
- VETERINARIAN FORMULATED AND RECOMMENDED DOG & CAT SUPPLEMENTS: Rich in antioxidants, these immune support dog supplements to fight against free radicals.
- PREMIUM PET SUPPLEMENTS: Since 1994, VetClassics has offered a high-quality line of pet health supplements developed by veterinarians and scientists to support care for dogs, cats and horses. Choose from an impressive collection of pet health supplements that address hip and joint support, cardiovascular care, liver and urinary support.
$66.99
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Bestseller No. 6
VetriScience Immunity Health Easy-Open Capsules, 23 Antioxidants for Cell Advance, Immune Plus Supplement for Medium to Large Breed Dogs, Immune and Allergy Support, 120 Count
- Immunity Health for Dogs: Proven antioxidant nutritional supplement for dogs to promote optimal immune health and function in all breeds and ages
- Antioxidants for Dogs: Owners looking to boost their pet's immune system often turn to dog antioxidant supplements. Immunity Health offers 23 powerful antioxidants to support immune health and protect against free-radical damage
- Immune and Allergy Support: Immunity Health is packed with vitamins and minerals. It offers important antioxidant vitamins for dogs like A, C, E, and B6, as well as minerals like magnesium, copper, and zinc to support a strong, balanced immune system
- CoQ10 for Dogs: Thinking of adding a Coenzyme Q10 antioxidant supplement? Immunity Health capsules offer a healthy dose of CoQ10 in every capsule, to support your dog's immune health, heart health, energy levels, and overall wellness and vitality
- Easy-to-Use Capsules: This dog immune supplement can be added directly to meals in capsule form or sprinkled over food. Immunity Health comes in two formulas specifically designed for small and medium/large dogs
$29.49
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Bestseller No. 7
VetriScience Senior 27+ Active Health Daily Chewable Multivitamins for Senior Dogs, with Vitamins, Minerals & Antioxidants, Health & Wellness Support, Soft Chews, Veggie, 60 Count - New Look
- DOG MULTIVITAMIN CHEWS: New look, new name, same trusted Canine Plus formula; Daily multivitamin with 27+ essential nutrients to help balance your senior dog’s diet and fill nutritional gaps not covered by standard commercial dog food
- DAILY SUPPORT FOR SENIOR DOGS: These senior multivitamin chews are packed with over 27 essential nutrients, including vitamins, minerals, fatty acids, antioxidants, & calcium to promote overall immune health and well-being in senior dogs
- EFFECTIVE INGREDIENTS: Feature antioxidants like vitamin A, vitamin C, vitamin E as well as vitamin B to support cell health, mood, and energy; Includes Omega 3 fatty acids from fish oil to support brain, eye, and joint health
- EASY & CONVENIENT: Gentle on sensitive stomachs and easy to administer; Perfect for dogs on homemade or raw diets, ensuring they receive the full spectrum of nutrients needed for optimal aging
- VETERINARIAN APPROVED: Formulated by veterinarians and trusted by over 12,000 vetrrinary clinics; Made in the USA and Certified by the National Animal Supplement Council (NASC)
$12.79
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Bestseller No. 8
Zesty Paws Eye Supplement for Dogs - Vision Support with Antioxidants & Omega 3 Fatty Acids - 90 Chews
- Daily Eye Care Soft Chews - Zesty Paws Senior Vision Bites are chewable supplements designed to promote eye health for senior dogs of any breed or size.
- Lutein for Canine Seniors - This formula features Lutemax 2020, a marigold extract comprised of Lutein and Zeaxanthin to help maintain normal eye function and health for senior dogs.
- Omega-3 Fatty Acid - Senior Vision Bites also feature Cod Liver Oil and DHAgold, an algae derived source of Omega 3 DHA to support overall skin health for older dogs.
- Eye Health - Each bite contains AstaZine, a certified organic Astaxanthin that supports ocular health, while Beta Carotene supports normal visual function.
- Eye, Skin & Immune Support - These chewy supplements contain Vitamin C, Vitamin E, Beta Carotene, and Bilberry to support eye health, skin health, and immune function to keep your dog feeling their best.
$42.97
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Bestseller No. 9
Native Pet Dog Vitamins & Supplements - 11-in-1 Multivitamin Powder for Dogs Food Topper - Collagen, Glucosamine, Probiotics, Omega & More- Supports Healthy Gut, Mobility & Overall Health -30 Scoops
- 11-IN-1 DOG SUPPLEMENT FOR FULL-BODY SUPPORT: This multivitamin for dogs packs powerful support for joints, heart, digestion, skin & coat, immunity, brain, and more. It’s built for every dog—any breed, size, or age—to fuel daily health and feel good every single day.
- HIGH POTENCY POWDER WITH 5X MORE ACTIVES: This isn’t your average pet vitamins and supplements. Our powder delivers 2500mg+ of active ingredients per scoop—5x more than most chews. Chews can’t handle that much. Powder can. This vitamins for dogs actually delivers.
- MAX ABSORPTION FOR REAL RESULTS: This dog vitamin comes in powder form for better bioavailability. That means nutrients absorb fast and work harder. No wasted ingredients—just real-deal supplements for dogs that actually do something.
- CLEAN LABEL WITH FULL TRANSPARENCY: This dog multivitamin powder skips the junk—no artificial flavors, starches, or sneaky fillers. Every ingredient earns its spot. You’ll find this puppy vitamins and supplements actually do what they say—for real health benefits, no fluff.
- VET FORMULATED FOR DOGS OF ALL AGES & SIZES: Crafted by a board-certified veterinary nutritionist, this dog powder delivers expert-level care. One scoop a day supports long-term wellness for puppies, adults, and seniors. It’s smart dog supplements & vitamins—built for every stage of life.
$19.99
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Bestseller No. 10
Amazing Cranberry for Dogs Pet Antioxidant, Urinary Tract Support Prevents and Eliminates UTI in Dogs, 120 Chews
- Dog Uti Treatment - Our cranberry supplement for dogs tastes great, no mess, small and easy to chew bite-sized bacon and beef liver flavored tablets your pet will love, perfect dog urinary tract infection treatment for dogs with sensitive stomach who hate taking pills and pouches; Treat won't harden into clumps like powder, cause bad breath, make your house smell, or spill on your kitchen counters like messy liquids, juice, dried powders, & hard to open capsules; No refrigeration needed
- Cranberry Pills for Dogs - No byproducts, no allergies, 100% safe, Made in America, veterinary science approved bladder support for dogs; Works great for allergy-prone dogs; No wheat, corn, animal digest, grains, soy, egg, potato, shrimp, crab, shark, gluten, avocado; Proprietary canine formula; Holistic nutritional vitamin boost for puppies, seniors, little or large breed; Made in small batches in a Gmp organic certified facility; 3rd-party-tested for purity & correct dosage
- Bladder Control for Dogs - Help your dog feel great with the ultimate strength chewable cranberries fruit extract supplement with Apple Cider Vinegar Acv concentrate to help prevent bladder infection & kidney infections; Urinary tract for dogs renal formula remedies bladder pain, control inflammation relief, post antibiotics medicine treatment; Supplements dogs diet, aids total immune health; Puppy, adult, spayed, senior pets
- We Stand Behind It - Get your dog off drugs & medicines with this dog urinary supplement, relieve their suffering, let them heal naturally & live pain free; 1 chewables daily best w/ meals for dogs under 50 lbs, 2 to 3 tabs up to 80 lbs, 4 to 5 up to 120 lbs; Easy to adjust dosage as needed for dog's specific conditions; If you don't see massive improvement in your dog's health within 28 days using these herbal antioxidants as directed, we'll take care of it. Keep the bottle; No need to return!
- Your Dog Will Love It - Choose this affordable, powerful dog bladder support dogs (and cats) love to eat, and an effective dog bladder infection treatment. Click the Add To Cart button at the top of this page to claim your bottle now
$23.97
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Best Dog Antioxidant Supplements Buying Guide
1. Glucosamine: This is an amino sugar which is found in cartilage. A dog’s cartilage is in charge of supporting its joints and ligaments. It also aids in absorption of nutrients in the body.
Glucosamine can reduce the rate at which cartilage is broken down in the body. This is important because a faster breakdown of cartilage can lead to its reduced production and the onset of osteoarthritis.
The glucosamine supplement will increase the production of collagen which is the major component of cartilage. It also helps repair damaged cartilage and also reduces inflammation.
2. Chondroitin: This is another amino sugar which is found in cartilage. It works in a similar manner as glucosamine. It reduces the rate of cartilage breakdown and also inhibits enzymes that break down the cartilage.
This supplement also attracts water to the cartilage which makes it swell and become more resistant to damage.
3. Omega-3 fatty acids: Omega-3 fatty acids are essential fatty acids which are not produced by the body but are essential for the body to function properly.
They help improve the health of the cardiovascular system and also reduce inflammation in the joints.
4. Silica: This is an essential mineral which is used by the body to produce collagen. Collagen is an important component of cartilage.
Silica helps maintain the strength of the tissues and supports the immune system. It also reduces inflammation in the joints and muscles.
5. Turmeric: Turmeric is a spice which is used in Indian cuisine. It contains a compound called curcumin which has powerful antioxidant properties.
It helps relieve pain and inflammation in the joints and also improves their function. Turmeric also helps maintain the strength of the connective tissues and improves their elasticity.
6. Vitamin C: Vitamin C is a powerful antioxidant which helps neutralize free radicals in the body. Free radicals cause damage to the body and can lead to the onset of diseases like heart disease and cancer.
This vitamin is also important for the production of collagen which is an important component of cartilage.
What else you should know about dog antioxidant supplements
1. What are the benefits of antioxidant supplements for dogs?
There are many potential benefits of antioxidant supplements for dogs, including reducing inflammation, boosting immunity, and neutralizing free radicals.
2. Which ingredients are most effective in antioxidant supplements for dogs?
The most effective ingredients in antioxidant supplements for dogs are vitamins C and E.
3. What are the possible side effects of antioxidant supplements for dogs?
The possible side effects of antioxidant supplements for dogs are increased thirst, increased urination, and gastrointestinal upset.
4. How do I choose the best antioxidant supplement for my dog?
There are a few things to consider when choosing an antioxidant supplement for your dog. First, you’ll want to make sure that the supplement is appropriate for your dog’s size and weight. Second, you’ll want to choose a supplement that contains a variety of antioxidants, such as vitamins A, C, and E. Finally, you’ll want to choose a supplement that is easy for your dog to take and that is affordable.
5. How do I give my dog an antioxidant supplement?
There are many ways to give your dog an antioxidant supplement. Some common methods include adding it to their food, water, or treats. You can also purchase supplements in pill or powder form that can be given directly to your dog.
Conclusion
On the market, there are numerous best dog antioxidant supplements. Hopefully, the list of the top ten best dog antioxidant supplements will save you time researching and deciding on the best one for you.