This article is for you if you’re looking for a way to support your cat’s health from the inside out. Like us, cats need antioxidants to help combat the effects of aging and stress, and support a healthy immune system. These supplements can be especially beneficial for cats who need help with arthritis, or who have compromised immune systems.
Keep in mind that cat supplements can be difficult to find, especially if you’re looking for a specific health benefit, like helping your cat with their cat hairball remedies. We’ve done the research to find the best cat antioxidant supplements that are highly-rated by users and cat owners alike.
Keep reading to learn more about our best cat antioxidant supplements.
Our Editor’s Best Cat Antioxidant Supplements Reviews
- Cat multivitamin for overall health – Your cat has unique nutritional needs. Our formula complements your kitty’s balanced meals to help maintain overall health and well-being.
- 10+ essential vitamins – Our formula supports cardiovascular and overall health with vitamin A, B vitamins, and vitamins C and E for antioxidant support, so your cat can live their best life (all nine of them!).
- Probiotics and other nutrients – Cat Mix supports digestive health with cat-friendly probiotic strains. It also promotes eye, kidney and pancreatic health with amino acids arginine and taurine.
- Ingredients matter – We use the finest raw ingredients with the quality and purity you deserve. The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every one.
- Live your healthiest life – We believe the answers to a healthier life are in reach, and that scientific research is the key to getting there. That’s why so many of our formulas feature specific ingredients and amounts based on scientific studies.
- A Texture and Taste Cats Love: Pet Honesty’s Immune Health Lysine is a delicious supplement that contains amino acids, prebiotics, antioxidants, and more to support your cat’s immune and respiratory health. Powerful, wholesome ingredients are packed inside a unique texture format: crunchy on the outside and creamy on the inside, offering a taste and texture combination that cats love.
- Help Promote a Strong Immune and Respiratory System: These easy-to-give chews contain key functional ingredients to support immune and respiratory health, as well as gut, digestion, skin, and overall health. Plus, with a taste and texture 4/5 cats love*, giving them a chew is a simple way to help boost their health and help them feel their best. *Based on a 2022 feeding study
- Made with Natural & Other Premium Ingredients Like Lysine, Colostrum, and Quercetin: Immune Health Lysine chews are filled with health-supporting ingredients you can trust. Lysine, an essential amino acid, supports immune and respiratory health. Colostrum is rich in antibodies that help support the immune system and gut health. Quercetin has antioxidant properties that promote a normal inflammatory response. All in a delicious chicken-flavored chew your cat will love!
- Pet Honesty Pledge: A taste your pet will love and results you can trust. Made with the most effective natural and premium ingredients. Formulated without corn, wheat, or soy. No artificial preservatives, colors, or flavors.
- Manufactured in the U.S.A. | NASC Member Company: All Pet Honesty products are made in the US with US and globally sourced ingredients and are produced in a GMP-compliant facility that meets the highest safety standards, so you can rest assured you're giving your pet the best quality product possible! Pet Honesty is also a NASC member company, meaning it has met the highest quality and compliance standards for pet supplements.
- Number 1 veterinarian-recommended cat probiotic brand to support digestive health (Kantar Veterinary Tracker, 2021), making it an excellent cat supplement
- Purina Pro Plan Sensitive stomach cat food supplement for the dietary management of kittens and adult cats with cat diarrhea
- Digestive Care Cat Food supplement containing probiotics proven to promote intestinal health and balance
- FortiFlora cat vitamins and supplements have antioxidants to support a robust immune system and contain antioxidants for cats
- Easy-to-feed probiotic powder
- HIGH-QUALITY ALLERGY SUPPLEMENT FOR DOGS, CATS: Help your furry friend weather the changes in season with this NaturVet Aller-011 Advanced Allergy Aid for Dogs and Cats. This pet supplement is rich in antioxidants, omegas, DHA and EPA to help boost your pet’s immune system.
- VITAMIN-ENHANCED PET SUPPLEMENTS FOR ALLERGIES: Ensure that your canine companion receives the nutrients he needs with these dog allergy supplements and cat allergy supplements that are cGMP compliant and made in the USA.
- DOG, CAT SUPPLEMENTS FOR IMMUNE SYSTEM SUPPORT: Available in soft chews, tablets and powder form, these dog and cat supplements for allergies are veterinarian formulated and designed to help combat environmental pollutants while supporting your pet’s immune system, skin moisture and respiratory health.
- TASTY CAT & DOG SUPPLEMENT: Fuel your pup’s body with the vitamins and minerals he needs to battle environmental allergies with a taste he loves. These soft chew, tablet and powder cat and dog supplements taste like a treat and help serve as a pet allergy aid.
- PET PRODUCTS YOU CAN TRUST: Since 1994, NaturVet has been serving the four-legged community with wholesome, vitamin-infused dog supplements so that your pup or senior dog maintains a healthy lifestyle. Made in the USA, each pet product from NaturVet is cGMP compliant and wheat-free.
- A TEXTURE AND TASTE CATS LOVE: With Pet Honesty’s Urinary Tract Health for cats your little one will be good to go. Powerful wholesome ingredients including antioxidants, probiotics, and fiber, are packed inside a unique and award-winning texture format: it’s crunchy on the outside and creamy on the inside, offering a taste and texture combination that cats love.
- PROMOTES URINARY TRACT HEALTH: These easy-to-give chews contain key antioxidants, probiotics, and fiber designed to support your cat’s urinary tract system while maintaining your cat’s normal urine pH and supporting your cat’s immune system and gut health. Plus, with a taste and texture 9/10 cats love*, it’s a simple way to promote your cat’s urinary tract health and help them feel their best. *Based on a 2024 feeding study
- MADE WITH CLEAN & SCIENCE-BACKED INGREDIENTS LIKE CRANBERRY EXTRACT, GLUCOSAMINE, AND PROBOTICS: Urinary Tract Health chews are filled with health-supporting ingredients you can trust. Cranberry extract acts as a natural antioxidant that helps counter bad bacteria in the urinary tract. Glucosamine maintains your cat’s urinary tract health & function. Added prebiotics, probiotics, and fiber support your cat’s gut health. All in a delicious chicken flavor your cat will love!
- BACKED BY THE PET HONESTY PLEDGE: PhD crafted, Vet approved. Delivering real results. Made with clean + research-backed ingredients. Formulated without fillers like corn, wheat, soy, cellulose or palm oil. No artificial preservatives, colors or flavors. Drool-worthy taste. Gentler on the planet - Packaged with minimum 30% recycled plastic.
- MANUFACTURED IN THE U.S.A. | NASC MEMBER COMPANY: All Pet Honesty products are made in the US with US and globally sourced ingredients and are produced in a GMP compliant facility that meets the highest safety standards. Pet Honesty is also a NASC member company meaning it’s met the highest quality and compliance standards for pet supplements.
- Nusentia's full spectrum liquid feline multivitamin: Spectrin for Cats : Best Value per Ounce! Includes antioxidants, vitamins, minerals, and key nutrients for vibrant skin, coat, and allergy support. Great for excessive shedding and allergies in cats.
- Easy dosing: Liquid cat vitamins absorb faster and cats love it!
- Up to 96 doses per container
- Made in the USA : Certified GMP : All Natural : Effective : Quality Tested
- Ideal for cats and kittens of all ages and stages.
- 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.
- Joint Health Support for Cats: Cosequin, the #1 veterinarian recommended retail joint health supplement brand, is formulated to help support healthy joints in cats. Contains glucosamine hydrochloride and sodium chondroitin sulfate
- Omega-3 Fatty Acids: Each soft chew also contains omega-3 fatty acids to help support skin and coat health, and overall wellness
- Manufactured in the United States with Globally Sourced Ingredients: Cosequin is a high-quality, cat joint supplement
- From the #1 Veterinarian Recommended Supplement Company*: Nutramax Laboratories Veterinary Sciences has been a leader in pet health for over 30 years, and provides supplements to support joint health, digestive health, and overall wellness
- Backed by Science: Nutramax Laboratories Veterinary Sciences supplements are veterinarian formulated with high-quality ingredients to ensure your pet is receiving a safe supplement
- BETTER QUALITY OF LIFE. Is your feline friend thriving? We’d be honored to help your cat live their happiest and healthiest life possible.
- IMMUNE SYSTEM CARE. A veterinarian-formulated holistic supplement featuring herbs renowned for their ability to support the immune system and help maintain your cat’s vibrant vitality.
- ANTIOXIDANT SUPPORT. Life Gold herbal ingredients provide antioxidant support that helps maintain antioxidant and free-radical balance which is essential for immune resilience.
- HEALTHY DETOXIFICATION. Gentle support for your cat’s elimination channels, including bowel, lymphatics, and lungs to help maintain healthy removal of waste byproducts.
- VETERINARIAN-FORMULATED. MADE IN USA. MONEY-BACK GUARANTEE. TRUSTED CARE SINCE 2001. Expertly developed by our compassionate team of in-house holistic veterinarians to offer your pet essential health support. All our vet-formulated supplements are proudly produced in FDA-registered, GMP-certified facilities in the USA. Each product is made with the highest-quality ingredients and undergoes rigorous testing for purity.
Best Cat Antioxidant Supplements Buying Guide
Before choosing the best cat antioxidant supplements you should consider following options:
1. Taurine: This is an essential amino acid that is already present in the body of the cat. Taurine is a powerful antioxidant that can help improve the overall health of your cat. It helps in fighting against heart diseases and also supports eye health.
2. Vitamin E: This is an important antioxidant and an essential vitamin for the cat. Vitamin E helps in improving the immunity and also supports the overall health of the cat. Vitamin E can also help improve the fertility of the cat. It helps in reducing the levels of cholesterol and also supports eye health.
3. Vitamin C: Vitamin C is an essential antioxidant for the cat. It helps in supporting overall health of the cat by improving the immunity. Vitamin C is also important for supporting the bone and teeth health of the cat.
4. Vitamin A: Vitamin A has antioxidant properties and is very essential for the overall health of a cat. It supports the immune system and also supports eye health of the cat.
5. Zinc: Zinc is an essential mineral for the cat and is an important antioxidant. Zinc supports the overall health of the cat and also supports muscle health. It also supports immune system of the cat.
6. Vitamin D: This is an essential vitamin and an important antioxidant for the cat. Vitamin D supports overall health of the cat and also supports bone health. It also helps in improving the immunity of the cat.
7. Fish Oil: Fish oil has many antioxidants properties and is important for the overall health of the cat. Fish oil helps in supporting the immunity of the cat and also helps improve the heart health of the cat. It also helps in improving the brain health of the cat.
8. Vitamin B: Vitamin B has antioxidant properties and is essential for the overall health of the cat. It supports the brain and muscle health of the cat. It also supports the immune system and the heart health of the cat.
9. Vitamin K: Vitamin K has antioxidant properties and is essential for the overall health of the cat. It supports overall health of the cat and also supports bone health. Vitamin K also supports the immune system of the cat.
10. Vitamin E: Vitamin E has antioxidant properties and is essential for the overall health of the cat. It supports immune system and also supports eye health of the cat.
11. Zinc: Zinc is an essential mineral for the cat and has antioxidant properties. Zinc supports overall health of the cat and also supports muscle health. It also supports immune system of the cat.
12. Iron: Iron has antioxidant properties and is essential for the overall health of the cat. It supports overall health of the cat and also supports muscle health. It also supports immune system of the cat.
13. Selenium: Selenium is an essential mineral for the cat and has antioxidant properties. It supports overall health of the cat and also supports muscle health. It also supports immune system of the cat.
14. Manganese: Manganese is an essential mineral for the cat and has antioxidant properties. It supports overall health of the cat and also supports bone health. It also supports immune system of the cat.
15. Zinc: Zinc is an essential mineral for the cat and has antioxidant properties. It supports overall health of the cat and also supports muscle health. It also supports immune system of the cat.
16. Vitamin K: Vitamin K has antioxidant properties and is essential for the overall health of the cat. It supports overall health of the cat and also supports bone health.
What else you should know about cat antioxidant supplements
1. What are the best cat antioxidant supplements?
There are a variety of cat antioxidant supplements available on the market. Some of the best include:
1. Antiox-9: This supplement contains a blend of vitamins A, C, and E, as well as selenium and zinc. It is designed to help support a healthy immune system and protect against free radical damage.
2. Catechin: This supplement contains a powerful antioxidant known as catechin. It is thought to help protect cells and reduce inflammation.
3. Coenzyme Q10: This supplement contains coenzyme Q10, which is a powerful antioxidant that helps to protect cells and improve energy production.
4. N-Acetyl Cysteine: This supplement contains a compound known as N-acetyl cysteine. It is thought to help protect cells and reduce inflammation.
5. Vitamin E: This vitamin is a powerful antioxidant that helps to protect cells and reduce inflammation.
2. What are the benefits of taking antioxidant supplements for cats?
The benefits of taking antioxidant supplements for cats are not fully known, but they may include reducing the risk of certain diseases, improving the health of the skin and coat, and reducing inflammation.
3. Are there any side effects of taking antioxidant supplements for cats?
There are no known side effects of antioxidant supplements for cats.
4. How do I choose the right antioxidant supplement for my cat?
There is no one-size-fits-all answer to this question, as the best antioxidant supplement for your cat will depend on their individual needs. However, some factors to consider when choosing an antioxidant supplement for your cat include their age, health condition, and any medications they are taking. You should also talk to your veterinarian about which antioxidant supplement would be best for your cat.
5. What is the best dosage of antioxidant supplement for my cat?
There is no definitive answer to this question as it will vary depending on the specific needs of your cat. However, it is generally recommended to give your cat between 50 and 100 mg of antioxidant supplement per day.
Conclusion
On the market, there are numerous best cat antioxidant supplements. Hopefully, the list of the top ten best cat antioxidant supplements will save you time researching and deciding on the best one for you.