Best Capsule Dog Antioxidants in 2026

Number 1 veterinarian-recommended dog probiotic brand to support digestive health (Kantar Veterinary Tracker, 2021), making it a great dog supplement

From the makers of the number one probiotic supplement recommended by veterinarians (Kantar Veterinary Tracker, 2020)

Probiotic supplement for the dietary management of puppies and adult dogs with diarrhea

Urinary Tract Support - Zesty Paws Cranberry Bladder Bites are formulated to promote kidney & bladder health. With 200 mg of cranberry & organic ingredients, these chewables can help pets UT wellness.

Enhanced with Cran-Max Cranberry - Each chew contains 200mg of Cran-Max, a pure Cranberry concentrate formulated with patented Bio-Shield technology - clinically proven to promote bladder & urinary health.

Promotes Kidney & Bladder Health - These chews also contain Organic Marshmallow Root & Astragalus help flush toxin buildups from the kidney & bladder for comfortable urination, & include anti-inflammatory properties.

Rich Omega-3 Support – Zesty Paws Omega Bites are delicious chewable supplement treats with Omega fatty acids (with EPA and DHA), vitamins, and nutrients to help dogs look and feel their best.

Features AlaskOmega – Derived from Wild Alaskan Pollock, this premium ingredient provides a clean and pure source of omegas (with EPA and DHA) to boost your pup's wellness.

Healthy Skin = Happy Dog! – This formula contains Fish Oil, Biotin, Vitamin C and E. These vitamins, omegas, and antioxidants may help with dry, sensitive skin.

Rich Omega-3 Support – Zesty Paws Omega Bites are delicious chewable supplement treats with Omega fatty acids (with EPA and DHA), vitamins, and nutrients to help dogs look and feel their best.

Features AlaskOmega – Derived from Wild Alaskan Pollock, this premium ingredient provides a clean and pure source of omegas (with EPA and DHA) to boost your pup's wellness.

Healthy Skin = Happy Dog! – This formula contains Fish Oil, Biotin, Vitamin C and E. These vitamins, omegas, and antioxidants may help with hot spots and dry, itching, irritated, sensitive, and flaky skin.

Dog Uti Treatment - Taste 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

DOG URINARY TRACT CHEWS: These cranberry chews take a holistic approach to your dog's health. This unique formula helps correct the imbalance in a pet’s urinary and immune systems, helps reduce discomfort, and supports the proper health of the bladder wall and urethra.

CRANBERRY POWER: This dog cranberry extract may help to minimize bacterial colonization, which helps make the bladder lining less hospitable to bacteria. This helps prevent infections and the need for antibiotics, and can help prevent your dog from developing a antibiotic resistance.

IMMUNE SYSTEM BOOSTER: Echinacea helps to stimulate the immune system, and Oregon grape root is a natural, plant root derived antibiotic remedy. Marshmallow root provides a soothing, lubricating protective barrier in the bladder against substances which contribute to irritation.

Natural UTI Treatment - Coco and Luna Urinary Tract Support is a supplement that contains cranberry for dogs which is a natural dog urinary tract infection treatment.

Powerful Formula - Our dog cranberry supplement supports your pet’s bladder and urinary tract health while also providing a rich and natural source of antioxidants and Vitamin C to support normal urine pH.

Kidney Function - We produce our chewable tablets to contain ingredients that are designed to help maintain normal urinary tract and kidney functions and allow for better bladder control for dogs.

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

Daily Eye Care Soft Chews - Zesty Paws Senior Vision Bites are grain free chewable supplements with vitamins, antioxidants, and Omega-3 to promote eye health for senior dogs of any breed or size.

Advanced Lutein for Canine Seniors - This formula features Lutemax 2020, a marigold extract comprised of Lutein and Zeaxanthin to help senior dogs with eye strain and carotenoid levels.

Omega-3 Fatty Acid for Eyes - Senior Vision Bites also feature Cod Liver Oil and DHAgold, an algae derived source of Omega 3 DHA to support overall eye function to help eye function for older dogs.

Guard your lawn & help your pet - Zesty Paws Stay Green Bites are lawn protector chewables that get to the source of grass burn caused by dog urine to help your lawn go from burned to beautiful, while also providing digestive and bowel support.

Enhanced with Cran-Max - This formula contains 50mg of Cran-Max, a concentrate made from cranberries using patented Bio-Shield technology, clinically proven to flush out bad bacteria to support the bladder, urinary tract, UT & digestive health.

Grass & Garden saver formula - Each soft chew contains 250mg of DL-Methionine, which is an essential amino acid that contains special properties that may help to reduce the nitrogen levels in your dog’s pee to put an end to lawn burn.

A unique blend of highly concentrated antioxidants to help eliminate free radicals that can cause cellular damage.

Helps to support overall wellness and a healthy aging process.

Supports with skin or ear conditions, respiratory infections and other chronic conditions.

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.

Healthy Heart = Happy Pup! = Zesty Paws Cardio Bites are premium pet chewables that contain a blend of ingredients that promote healthy cardiovascular function for your canine companion.

Featuring AlaskOmega Fish Oil - Each salmon flavored chew contains AlaskOmega, a traceable and sustainable fish oil that provides Omega-3 fatty acids (EPA and DHA) that support cardiovascular health.

Plus Premium Kaneka Q10 - At 30 mg per chew, Kaneka Q10 is a clinically studied form on CoQ10 (or Coenzyme Q10), which is produced naturally via fermentation and supports cardiovascular function.

Highly rated immune support for dogs: 365 day guarantee; if you are not happy with our immune support for dogs plus antioxidant, simply contact us for a full refund; we want you to be completely satisfied with our premium tablets, which help to strengthen your dog's immune system to make it easier to fight off pathogens and toxins; manufactured using the highest standards, our supplement can be taken with your dog's food or separately

Help reduce inflammation: Nutrition Strength's immune support for dogs plus antioxidant contains a blend of reishi, maitake, turkey tail and shiitake mushrooms; their bioactive compounds, including polysaccharides, proteoglycans, terpenoids, phenolic compounds, steroids and lectins, have a wide range of therapeutic effects and can act as immune modulatory, antioxidant and anti inflammatory agents

Stimulate cell activity: our supplement's mushroom ingredients have been shown to stimulate the activity of T helper cells, which play an important role in the immune system, especially in the adaptive immune system, by helping to suppress or regulate immune responses; by giving a boost to your dog's immune system, you may help prevent and ease future health challenges for your pet and help your dog feel their optimal selves

DOG MULTIVITAMIN AND OMEGA BUNDLE: As they age, it is essential for dogs to get the right vitamins to support their growth. Our dog joint supplement bundle of Daily Adult Essential Multivitamins (60 count) + Omega Max w/ Turmeric (60 count) is pawfect to do just that. Use our dog vitamins and supplements to help protect and support your dog with ensuring they get essential vitamins as they age and a healthy-looking coat to match.

DAILY ESSENTIALS MULTIVITAMIN FOR DOGS: Our advanced formula contains essential vitamins and minerals for your dog’s long-term health, including Calcium, Phosphorus, Potassium, Magnesium, Iron, Vitamin A, Vitamin C, Vitamin D, Vitamin E, Vitamin B and more . And with a rich boost of antioxidants, it helps fortify the overall immune health too.

OMEGA MAX w/ TURMERIC: These dog turmeric chews are formulated by veterinarians to promote healthy skin and coat, and provide important support for heart, brain and hepatic liver health. Our dog turmeric soft chews are formulated with Omega-3, Omega -6, Omega-9, turmeric Curcumin and Vitamin E.

Specifically formulated to protect the senior canine brain from oxidative damage

Prevents age-related behavorial changes that lower a dog's quality of life

Antioxidant formula contains ingredients which have been shown to enhance brain health

PROMOTES HEALTHY URINARY TRACT: Our cranberry chews for dogs are specially formulated to support a healthy urinary tract, promoting overall wellness in your furry friend. UTI supplement for dogs promotes balanced pH levels and healthy immune system function, thereby supporting normal kidney and bladder control in dogs.

BLADDER CONTROL FOR DOGS: cranberry UTI treats fruit extract supplement provides potent support for your dog's bladder health, helping to prevent bladder and kidney infections, alleviate pain and inflammation, and support natural kidney detoxification and waste elimination. Additionally, this supplement boosts your dog's immune system and complements its diet, making it a versatile solution for puppies, adult dogs, spayed pets, and senior dogs.

NATURAL INGREDIENTS: Our chews contain natural ingredients like cranberry, which is known for its urinary tract benefits. Featuring D Mannose, and Nettle root, these chewable supplements contain potent ingredients that aid in kidney detoxification, defend the urinary tract lining, promote digestive health, and encourage optimal urine flow. Additionally, Astragalus root is rich in antioxidants that can potentially shield cells from harm.

An Advanced Anxiety Formula for Dogs – Zesty Paws Calming Bites are turkey flavored chewable supplements with natural and organic ingredients that help dogs with nervous, anxious, or aggressive behaviors feel calm and comfortable.

Features Suntheanine – These calming dog chewables contain 30mg of Suntheanine per chew, which is a pure and GRAS-designated form of L-Theanine that helps stimulate brain waves to promote relaxation with no drowsy effect.

Rich Omega-3 Support – Zesty Paws Omega Bites are delicious chewable supplement treats with Omega fatty acids (with EPA and DHA), vitamins, and nutrients to help dogs look and feel their best.

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; Treat 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; Safe w/ vitamins, Omega 3 fish oil salmon, probiotics, glucosamine, chondroitin, msm; No refrigeration needed

No byproducts, no allergies, 100% safe, Made in the USA, veterinary science approved & 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 certified facility; Ingredients 3rd-party-tested for purity & correct dosage

Make your dog look & feel great with the ultimate chewable turmeric curcumin anti-oxidant + probiotic + glucosamine, MSM, and chondroitin supplement for healthy joints & cartilage, heart, brain, hepatic liver; Natural food pharmaceutical grade anti-inflammatory formula remedies pain, inflammation, rheumatoid arthritis, hip dysplasia relief, post antibiotics medicine treatment; Supplements dogs diet & aids total health wellness, immune support, puppy, adult, senior pets

Boost the Immune System – Zesty Paws Aller-Immune Bites are grain free soft chews that support immune, histamine, and digestive health for dogs with skin, seasonal, and environmental allergy issues.

Enhanced with EpiCor – At 80 mg per chew, Epicor contains vitamins, protein, fiber, and antioxidants that are clinically proven to support the body's natural immune defenses to keep your dog healthy.

Urinary Tract Support - Zesty Paws Cranberry Bladder Bites are formulated to promote kidney & bladder health. With 200 mg of cranberry & organic ingredients, these chewables can help pets UT wellness.

ADVANCED FORMULA - Canine Detox is designed to support your dog's natural detoxification system (their liver) against everyday toxins found in dust, pollen, and even their food so they can feel like their playful, carefree selves for as long as possible.

POWERFUL ANTIOXIDANT - Canine Detox includes Turmeric Phytosome, a powerful antioxidant that supports healthy functioning in your dog’s liver, so it can do its job efficiently.

NATURAL PLANT EXTRACTS - Milk Thistle Phytosome helps your dog's liver cells block toxins so your dog's body can naturally flush them out and SolarPlast Spinach Leaf Extract has detoxifying antioxidant molecules that supports glutathione levels and healthy liver function.

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; Treat 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; Safe w/ vitamins, Omega 3 fish oil salmon, probiotics, glucosamine, chondroitin, msm; No refrigeration needed

No byproducts, no allergies, 100% safe, Made in the USA, veterinary science approved & 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 certified facility; Ingredients 3rd-party-tested for purity & correct dosage

Make your dog look & feel great with the ultimate chewable omega 3 anti-oxidant + probiotic + glucosamine, MSM, and chondroitin supplement for healthy joints & cartilage, heart, brain, hepatic liver; Natural food pharmaceutical grade anti-inflammatory formula remedies pain, inflammation, rheumatoid arthritis, hip dysplasia relief, post antibiotics medicine treatment; Supplements dogs diet & aids total health wellness, immune support, puppy, adult, senior pets

Boost the Immune System – Zesty Paws Aller-Immune Bites are grain free soft chews that support immune, histamine, and digestive health for dogs with skin, seasonal, and environmental allergy issues.

Enhanced with EpiCor – At 80 mg per chew, Epicor contains vitamins, protein, fiber, and antioxidants that are clinically proven to support the body's natural immune defenses to keep your dog healthy.

Sourced From New Zealand - Zesty Paws Green-Lipped Mussel Bites are grain-free chewables that feature cold processed New Zealand Green Lipped Mussel.