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
- 8-in-1 Formula - Zesty Paws Multifunctional Bites are functional supplement chews with premium ingredients that support physical performance, antioxidants, hip & joint, heart, immune, skin, liver, & gut health for dogs of all ages, breeds, and sizes.
- Skin Health & Antioxidants – For animals with sensitive skin, this formula contains Cod Liver Fish Oil and Vitamin E to help maintain normal moisture and CoQ10 to help reduce oxidative stress.
- Hip, Joint & Performance Support - Each dog chew features OptiMSM, a premium form of MSM for muscular support, which works synergistically with the Glucosamine HCl and Chondroitin Sulfate in these chews for hip and joint support plus Cod Liver Oil and B-Complex Vitamins support normal physical performance.
- Gut Health & Probiotics - These chews also contain a six-strain Gut Health Blend (500 million cfu per chew) and a Digestive Health Blend to promote gut flora while supporting normal bowel function for dogs.
- Heart, Liver & Immune Health - Multifunctional Bites feature powerful antioxidants, premium CoQ10, Cod Liver Oil and Vitamins A, C, & E to promote healthy cardiovascular function, support liver health and enhance immune response.
- Comprehensive Senior Support: These senior multivitamin chews are packed with over 27 essential nutrients, including vitamins, minerals, fatty acids, and antioxidants, to promote overall health and well-being in senior dogs
- Perfect for Senior Dogs: Designed for senior dogs of all breeds and sizes, this multivitamin supports healthy aging by promoting energy, mood, and cellular health. It’s an ideal choice for older dogs on homemade or raw diets to ensure they’re getting balanced nutrition
- Formulated by Vets: A senior-specific multivitamin designed to help fill nutritional gaps and provide daily support for heart, brain, immune, and joint health
- Science-Backed Ingredients: This senior dog multivitamin includes key ingredients like vitamins A, C, and E for antioxidant protection, biotin and methionine for skin and coat, and Omega-3 and -6 fatty acids from fish oil to support joints and brain function
- Easy and Delicious: These chews are veggie -flavored to be gentle on sensitive stomachs and a great alternative to liquid or powder supplements. Dogs love the taste, making them easy to add to your daily routine
- Antioxidant Support for Dogs Everyday Health: Support your dog’s overall wellness with this antioxidant dog supplement topper, formulated to help maintain healthy cells and support immune function. Ideal for daily nutrition routines to help dogs stay active, vibrant, and thriving at every life stage.
- Antioxidant Berry Dog Supplement with Real Superfoods: Made with blueberry, cranberry, strawberry, raspberry, and blackberry, this antioxidant berry dog supplement delivers naturally occurring vitamins and minerals to support immune health, skin and coat health, and overall wellness in dogs.
- Antioxidant Berry Dog Supplement with Real Superfoods: Made with blueberry, cranberry, strawberry, raspberry, and blackberry, this antioxidant berry dog supplement delivers naturally occurring vitamins and minerals to support immune health, skin and coat health, and overall wellness in dogs.
- Dog Multivitamin Powder Alternative from Real Food: This dog multivitamin powder alternative provides over 60 nutrients including vitamins, minerals, amino acids, and fatty acids derived from real food ingredients to help support whole body health without synthetic additives.
- Immune Support Supplement for Dogs with Antioxidants: Formulated as an immune support supplement for dogs, this antioxidant-rich blend helps maintain normal immune system function and supports cellular health, making it ideal for senior dogs or dogs needing daily wellness support.
- ANTIOXIDANT PET HEALTH SUPPLEMENTS FOR DOGS: As dogs age, it’s important to provide support for overall health and to help eliminate free radical that can cause cellular damage with this antioxidant-rich dog supplements with coenzyme Q-10.
- COENZYME Q-10 DOG SUPPLEMENTS: Give your furry friend the support he needs with these health supplements for dogs that help support vitality and energy so he can maintain an active lifestyle.
- VITAMIN-RICH DOG SUPPLEMENTS: Support your dog’s overall health with these coenzyme Q-10 dog supplements that feature a blend of vitamin C, wheat grass, alfalfa and green tea.
- VETERINARIAN FORMULATED DOG SUPPLEMENTS: Support your pet’s endurance and overall well-being with this powerful formula of this coenzyme Q-10 dog supplement that includes wholesome ingredients to support healthy aging.
- PREMIUM PET SUPPLEMENTS: Since 1994, Vet Classics has offered a high-quality line of pet health supplements developed by veterinarians and staff scientists for dogs, cats and horses. Vet Classics offers preventative and solution based supplements for hip and joint support, cardiovascular care, liver support, urinary support, digestive support, and more.
- ADVANCED & NATURAL FORMULA - Wellix High-potency cat & dog milk thistle with dandelion, astaxanthin, and vitamins E & C supports liver health and provides antioxidant protection. Safe, effective, and free from additives and artificial flavors, making it a trusted milk thistle supplement for dogs and cats
- LIVER CARE - Wellix Milk Thistle Liquid promotes liver detoxification, eliminates toxins, and enhances cellular antioxidant capacity, providing cat liver support as well as serving as one of the trusted liver supplements for dogs. Ideal for daily liver care and for pets with diabetes or obesity
- EASY TO USE - Wellix milk thistle for dog and cat is flavored with chicken, making it irresistible even for picky pets. Simply add the liquid milk thistle directly to food or water for clean, stress-free daily supplementation
- PRECISE SUPPORT - Veterinarian-recommended Wellix milk thistle drops provide professional feeding guidelines. Use the marked dropper for precise nutritional support, delivering reliable liver support for dogs and cats of all sizes and ages
- LARGE CAPACITY - Each 120ml bottle of Wellix liquid milk thistle provides ample supply for daily and long-term liver care. Perfect for multi-pet households, it lasts several months even for large dogs, allowing you to easily support your pets’ liver health continuously and making daily care more reassuring
- 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.
- 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.
- Health Supplement for Dogs: VetIQ hip and joint chews for dogs are soft and a great way to support mobility, whether they love running, jumping, playing, or resting; They suit senior pets or those who need extra support staying active & comfortable
- Joints, Mobility, & Bone Health: Our Hip & Joint soft chews, senior dog treats, are designed to support hip mobility & overall joint health; every bite helps enhance bone health, maintain strong muscles, and ease stiffness from normal daily exercise
- High-Quality Ingredients: Made with a careful selection of high-quality ingredients, our dog joint supplement formula includes omegas to help lubricate joints, glucosamine supporting healthy joints and mobility, and MSM maintaining healthy muscles
- Chicken Flavored: Packed with a tasty chicken flavor that pups find irresistible, each soft chew is both beneficial and delicious, made with dog glucosamine to support your dog’s health
- Veterinarian Recommended: VetIQ hip & joint supplements for dogs are trusted by veterinarians and NASC-certified, ensuring quality, safety, and effectiveness; Feel confident adding these Hip & Joint soft chews to your dog’s daily wellness routine
- Eye Health Support for Dogs- Coco and Luna Eye Health Support contains natural antioxidants, vitamins, and cod liver oil to promote eye health for dogs.
- Eye Function Dog Vitamins - Our formula has ingredients like Cod Liver Oil, Bilberry Fruit, Astaxanthin, Vitamins C and E to help support overall eye function.
- Senior Dog Supplements - Our dog supplement contains ingredients like Lutein, Marigold Flower Extract and Zeaxanthin to help dogs with low carotenoid levels and eye strain.
- Veterinarian Formulated - Our supplements are veterinarian formulated and are free from harmful ingredients like Palm Oil, Corn, Soy Derivatives, Synthetic Colors, or Artificial Flavors, prioritizing your pet's well-being.
- Made in the USA from US and Globally Sourced Ingredients - All of our supplement products are manufactured in the USA in FDA-registered facilities that are NSF and GMP-certified in the USA.
- HUMAN-GRADE MULTIVITAMIN: ZEBORA dog multivitamins chewable contains vitamins, minerals, antioxidants, omega 3 fatty acids, glucosamine, chondroitin and 1 billion CFU of probiotics that support your pet's health balance and help them in peak condition
- COMPLETE VITAMINS AND MINERALS FOR LONGEVITY: ZEBORA dog vitamins multivitamin is crafted with Antioxidants to foster a healthy immune system with powerful B Vitamins, Vitamins A, C, E & D3. And minerals work together to fills the pup's nutritional gap
- COMPERHENSIVE SUPPORT FROM THE INSIDE OUT: Digestive support through 1 billion CFUs dog probiotics. Hip and joint supplement for dogs with Glucosamine, Chondroitin & L-cysteine. Skin and coat supplement for dogs with omega 3 which is rich in EPA & DHA
- SUPERIOR TO SOFT CHEW OPTIONS: Raw chicken and goat milk delicious bite-sized chews ensure easy to give vitamins for dogs. Utilizing freeze-drying technology, remove all moisture to better preserve nutrients, making it less susceptible to spoilage or mold
- FOR ALL DOGS & CATS VITAMINS: With gentle formulas that are easier on sensitive stomachs. No matter what size, age or breed your pet is, our senior and puppy vitamins provide long-term support and protection
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.