Antioxidant Foods for Dogs

Familiar foods, useful portions and a place in the meal your dog already enjoys

By La Petite Labs Editorial 12 min read

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Contents

Blueberries, carrots, plain cooked pumpkin and suitable greens can all be small additions to a dog’s diet. The useful choice is a food your dog enjoys, in a preparation and amount that fit the rest of the day. 3 4

Their colours offer clues to the compounds they contain. The complete main meal contributes too. Understanding both makes it easier to choose a treat, read a food label and decide whether a separate formula belongs alongside it.

Canine studies have examined blueberries after exercise and fortified diets over longer periods. Their results help explain the interest in antioxidant nutrition; the practical starting point remains the food and amount suited to your dog.

What an antioxidant food brings

Your dog’s cells naturally produce reactive molecules as they work. Some have normal biological roles; when their production exceeds the body’s defenses, they can damage cell components. Antioxidants help keep that chemistry in balance. 12

Foods contribute in different ways. A berry carries plant pigments, while a complete meal supplies nutrients such as vitamin E. “Antioxidant food” describes something about that chemistry. It is not a separate food group that needs its own daily serving. 9 14

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The main meal already counts

Look for a nutritional adequacy statement saying the food is complete and balanced for your dog’s life stage. That statement concerns the daily diet as a whole; a beautiful ingredient list cannot do the same job. 5 Vitamin E, for example, helps protect cell-membrane fats from oxidation. 9

Dry food can also carry an antioxidant blend. In a study of 40 adult dogs over 84 days, complete diets with additional vitamin E, vitamin C and beta-carotene changed blood antioxidant measures and measures of DNA damage. Hill’s Pet Nutrition funded the study, which measured biological responses, not lifespan. 12

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Blueberries and their blue-purple pigments

Blueberry skins contain anthocyanins, pigments that contribute to the fruit’s antioxidant compounds. That gives the familiar blue-purple colour a chemical meaning. 14

Plain blueberries are one possible treat; raspberries and apple are other options in veterinary feeding guidance. With apple, remove the core and seeds. 3 There is no need to persuade a dog to like every fruit on the list. Start with a choice that makes sense for the food you keep at home.

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Carrots, pumpkin and sweet potato

Carrots and sweet potatoes supply beta-carotene, a member of the carotenoid pigment family. These are different compounds from the anthocyanins in blueberries. 8

Plain cooked pumpkin or sweet potato can be offered as small extras. Choose pumpkin without pie-filling ingredients, and leave butter, oil and seasoning out of the dog’s portion. 3

Golden retriever nuzzling a woman holding a Hollywood Elixir box on the grass beside a food bowl

Greens and red pepper offer more choices

Cornell’s veterinary guidance includes small amounts of spinach, kale and red bell pepper among possible additions, alongside berries and carrots. 4 Leafy green vegetables can contain carotenoids too: orange is not the only colour in which these compounds occur. 8

For a dog who prefers a mild vegetable, plain green beans are another option. 3 You can choose among foods your dog accepts instead of building a bowl with something from every colour.

Antioxidants help protect cells from damage caused by reactive molecules. Blueberries and other suitable fruits and vegetables contribute some of those protective compounds.

Useful nutrients are not always colourful

Animal-food ingredients also contribute nutrients. Meat, poultry, seafood and eggs contain selenium. Selenium is part of proteins including glutathione peroxidases, which help protect against oxidative damage. Liver, eggs and fish can supply preformed vitamin A, which differs from the carotenoids in plants. 15 8

Dogs also make vitamin C in the liver and have no AAFCO dietary requirement for it. 9 A fruit’s reputation as a vitamin C source therefore does not, by itself, make that fruit necessary for your dog. The complete diet brings these nutritional needs together; adding organ meat or a mineral powder is a separate formulation decision.

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Fresh, frozen, raw or cooked?

Plain frozen fruit can be a convenient option. Choose plain fruit by checking the ingredients. 2 Follow any cooking instructions on the package.

Wash fresh produce under running water, without soap. Use clean utensils, discard rotten produce and refrigerate perishable or pre-cut portions. 7 Suitable vegetables may be raw or cooked without added seasonings. 3 Cooking can make beta-carotene in some foods more available for absorption. Retaining a raw texture is therefore not the only consideration when preparing vegetables. 8

Woman smiling beside a golden retriever, a green food bowl and a Hollywood Elixir box

Turn the treat allowance into an amount

AAHA advises at least 90% of daily calories from complete food and no more than 10% from extras. That includes fruit, treats, edible chews and caloric supplements. 1

For a hypothetical dog assigned 500 calories a day, the ceiling for extras would be 50. If other treats already use 30, 20 remain. This is arithmetic, not a calorie prescription for a dog of a particular size. 1

For comparison, 20 g of blueberries supplies about 12 calories, while 20 g of raw apple supplies about 10. Either portion on its own would fit the remaining allowance. They are measured comparisons, not recommended servings for every dog. 2

Man holding a Hollywood Elixir box while sitting on an outdoor sofa with a golden retriever

Let texture and preference help you choose

Match size and firmness to your dog’s chewing. Very hard foods can damage teeth; awkward pieces can pose choking or blockage risks. Try soft-cooked vegetables or mashed berries. 3

Soft food may suit an older dog or simply be a preference. If a berry is left in the bowl, try an appropriate vegetable on another occasion or keep to the usual food. A colourful extra is optional. 4

Keep these foods out of the mix

Grapes and raisins, onions and garlic, chocolate, macadamia nuts and foods containing xylitol do not belong in a dog’s treat selection. A healthy reputation in human nutrition does not make them suitable for dogs. Fruit pits and other indigestible large pieces pose a separate obstruction risk. 6

Check the whole recipe when a food comes prepared or sweetened. If a dog may have eaten a toxic item, seek veterinary or animal-poison advice promptly rather than waiting for symptoms. 6

Keep fruit and vegetable extras within your dog’s treat allowance: no more than 10% of daily calories from all extras combined.

Woman sitting with a beagle in a kitchen while holding a Hollywood Elixir box

DVM Voice: Clinical Vignette of a Common Pattern in Senior Dog Aging

Case provided by JoAnna Pendergrass, DVM

Rex, a 7-year-old Labrador Retriever, was brought in after his owner noticed he was slower to rise, hesitant on stairs, and less able to play as before. Examination showed stiffness and reduced hip mobility; radiographs confirmed degenerative joint changes.

His care required weight management, veterinary-guided pain control, nutritional support, and rehabilitation — a comprehensive plan, but one started only after visible decline appeared.

Clinical takeaway: Rex’s case reflects the value of proactive aging support: maintaining lean body condition, monitoring mobility early, and supporting cellular resilience, antioxidant defense, and healthy inflammatory balance before decline becomes obvious.

Single-case vignette. Not generalizable. Veterinary oversight is essential for pain, stiffness, or suspected joint disease.

Explore Hollywood Elixir Research →
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What the blueberry experiment measured

Blueberries have been studied directly in dogs. In an experiment with sled dogs, the blueberry-fed group had higher total antioxidant status in blood collected after exercise than the comparison group. The exercise did not produce unusual muscle injury according to the markers measured. 10

This is useful evidence of a measurable response to blueberry feeding. The outcome was a blood marker after exercise; it does not establish a household serving size, better athletic performance or a longer life. A small fruit treat can be chosen on its practical merits while that more specific research continues. 10

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The senior-dog result involved a whole routine

A two-year study of aged beagles compared a fortified diet, behavioral enrichment, both together and a control condition. The combined group performed more accurately on learning tasks at one and two years than the other aged groups. 11

The combined result was encouraging. The researchers changed a whole diet and the dogs’ activities, so an individual fruit cannot take credit for the outcome. 11 At home, it makes sense to consider the meal alongside the activities your dog enjoys.

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A laboratory score cannot pick dinner

An antioxidant score describes how a sample performs in a particular test. Digestion and the rest of the food come between that sample and a dog’s response.

In a small study, six dogs ate four dry foods in successive feeding periods. The food with the highest measured antioxidant capacity did not produce the highest antioxidant capacity in the dogs’ blood; another food did. Food intake, composition and the individual dog also influenced the findings. 13

The largest laboratory antioxidant score therefore cannot identify the best dinner for a dog. The food still needs to suit the dog’s nutritional needs, appetite and feeding plan.

Keep room for rewards and food games

You can reserve part of the main meal for training rewards. Those pieces still belong to the day’s complete-food allowance. Setting out the day’s extras in advance also helps everyone in the household work from the same amount. 1

Where a measured formula fits

Hollywood Elixir is a 17-active NAD+ longevity system; blueberry powder is one part of its broader cellular-nutrition formula. A standard 2.5 g sachet includes 50 mg of blueberry powder. That is a declaration of dry powder, not a fresh-fruit serving or a measured anthocyanin dose. 19

See the complete ingredient list.

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Why there is more than blueberry in the sachet

NR, CoQ10 and reduced glutathione are three of Hollywood Elixir’s 17 actives. A standard 2.5 g sachet declares 60 mg, 40 mg and 50 mg respectively. 19

NR supplies starting material that cells process into NAD. 16 CoQ10 carries electrons within the inner mitochondrial membrane, part of the machinery that uses energy from nutrients. 17 Enzymes use reduced glutathione to convert hydrogen peroxide into water. 18

Hollywood Elixir brings these energy-related and antioxidant ingredients together with B vitamins, polyphenols and other selected actives in a complete NAD+ system. 19 That is the reason to choose the formula beyond its blueberry content: several aspects of cellular nutrition in one prepared daily addition. The canine food studies above did not test Hollywood Elixir.

See how cells make, use and recycle NAD+ in our NADome and NADomics guide.

Woman cuddling a brown-and-white spaniel while holding a Hollywood Elixir box

Add the chosen serving to the usual meal

Hollywood Elixir directions specify half a sachet for dogs under 7 lb, one for 7–30 lb and two above 30 lb. Mix the serving into usual food and serve immediately. 19

Before adding another concentrated nutrient product, compare its label with everything already being used. Vitamins and minerals have a balanced place in the diet; a second product may repeat ingredients that are already present. 9

Choose what goes in the next bowl

A dog who leaves berries behind still has useful choices. A soft vegetable mixed into dinner may be a better fit, or the usual meal may be enough. Pick the option that makes feeding straightforward.

For a broader healthy-aging routine, Hollywood Elixir brings NAD+ precursor, mitochondrial and antioxidant ingredients together in one powder. Choose it for that complete system, then mix the directed serving into the familiar meal. You can keep enjoying small, suitable food extras without making each one responsible for the whole plan.

Your dog’s complete food already supplies antioxidant nutrients such as vitamin E, which helps protect the fats in cell membranes. Fresh produce can add variety while the complete meal remains the nutritional foundation.

Educational content only. This material is not a substitute for veterinary advice. Always consult your veterinarian about your dog’s specific needs. These statements have not been evaluated by the Food and Drug Administration. Products mentioned are not intended to diagnose, treat, cure, or prevent any disease.

Glossary

Anthocyanins: Plant pigments found in blueberry skins.

Carotenoids: A family of pigments that includes beta-carotene in carrots and sweet potatoes.

Oxidative stress: An imbalance between reactive molecules and antioxidant defenses that can damage cell components.

Complete and balanced: A food’s nutritional adequacy for use as the daily diet at the stated life stage.

NR: Nicotinamide riboside, a starting material used in making NAD.

Related Reading

Aging & Senior Dog Guidance
• Dog Age Calculator
• Dog Lifespan by Breed
• Dog Dementia
• Lethargy in Dogs
• My Dog Won't Eat
• Dog Pacing At Night
• Dog Licking Paws
• Can Dogs Dehydrate

Healthy Aging Support
• NAD+ for Dogs
• NMN for Dogs
• Antioxidants Supplements for Dogs
• Best Senior Dog Supplements & Vitamins
• Dog Longevity Drugs
• Rapamycin for Dogs

References

Numbered references identify the sources used for specific claims. Read the study design, species and evidence boundaries alongside each finding.

  1. American Animal Hospital Association. 2021 AAHA Nutrition and Weight Management Guidelines: Feeding Plans for Healthy, Appropriate Weight Cats and Dogs. AAHA · 2021Study design/context: Feeding guidelineSpecies/context: Dogs and catsEvidence boundary: Daily calories and extras.↩ 1 · ↩ 2 · ↩ 3
  2. LifeLearn Animal Health. Vegetarian Diets for Dogs. VCA Animal Hospitals · 2026Study design/context: Client guidanceSpecies/context: DogsEvidence boundary: Food calorie comparisons.↩ 1 · ↩ 2
  3. VCA Animal Hospitals. Treats to skip and treats to share with your pet! VCA Animal HospitalsStudy design/context: Client guidanceSpecies/context: PetsEvidence boundary: Food preparation and texture.↩ 1 · ↩ 2 · ↩ 3 · ↩ 4 · ↩ 5 · ↩ 6
  4. Cornell University College of Veterinary Medicine. Diets to boost immunity. Cornell UniversityStudy design/context: Veterinary guidanceSpecies/context: DogsEvidence boundary: Diet and suitable produce.↩ 1 · ↩ 2 · ↩ 3
  5. U.S. Food and Drug Administration. Complete and Balanced Pet Food. FDAStudy design/context: Label guidanceSpecies/context: PetsEvidence boundary: Nutritional adequacy.↩
  6. U.S. Food and Drug Administration. Potentially Dangerous Items for Your Pet. FDAStudy design/context: Safety guidanceSpecies/context: PetsEvidence boundary: Unsafe foods and obstructions.↩ 1 · ↩ 2
  7. U.S. Food and Drug Administration. Selecting and Serving Produce Safely. FDAStudy design/context: Food handlingSpecies/context: ProduceEvidence boundary: Household preparation.↩
  8. National Institutes of Health Office of Dietary Supplements. Vitamin A and Carotenoids: Fact Sheet for Health Professionals. NIH ODS · 2025Study design/context: Nutrition referenceSpecies/context: Food compositionEvidence boundary: Chemistry, not canine doses.↩ 1 · ↩ 2 · ↩ 3 · ↩ 4
  9. Sherry Lynn Sanderson. Nutritional Requirements of Small Animals. Merck Veterinary Manual · 2024Study design/context: Veterinary referenceSpecies/context: Dogs and catsEvidence boundary: Normal nutrient roles.↩ 1 · ↩ 2 · ↩ 3 · ↩ 4
  10. Kriya L. Dunlap and colleagues. Total antioxidant power in sled dogs supplemented with blueberries and the comparison of blood parameters associated with exercise. Comparative Biochemistry and Physiology A · 2006· DOI 10.1016/j.cbpa.2005.09.007Study design/context: Exercise experimentSpecies/context: Sled dogsEvidence boundary: Blood markers after exercise.↩ 1 · ↩ 2
  11. N. W. Milgram and colleagues. Learning ability in aged beagle dogs is preserved by behavioral enrichment and dietary fortification: a two-year longitudinal study. Neurobiology of Aging · 2005· DOI 10.1016/j.neurobiolaging.2004.02.014Study design/context: Two-year interventionSpecies/context: Aged beaglesEvidence boundary: Fortified diet and enrichment.↩ 1 · ↩ 2
  12. Dennis E. Jewell and colleagues. Effect of dietary antioxidants on free radical damage in dogs and cats. Journal of Animal Science · 2024· DOI 10.1093/jas/skae153Study design/context: 84-day feeding trialSpecies/context: Dogs and catsEvidence boundary: Biomarkers; Hill’s funded.↩ 1 · ↩ 2
  13. Alexandra Usuga and colleagues. Dry food affects the oxidative/antioxidant profile of dogs. Veterinary Medicine and Science · 2023· DOI 10.1002/vms3.1064Study design/context: Four-food comparisonSpecies/context: Six dogsEvidence boundary: Food assay versus blood response.↩
  14. USDA Agricultural Research Service. Breeding Better Blueberries. USDA ARSStudy design/context: Researcher interviewSpecies/context: BlueberriesEvidence boundary: Pigment chemistry.↩ 1 · ↩ 2
  15. National Institutes of Health Office of Dietary Supplements. Selenium: Fact Sheet for Health Professionals. NIH ODS · 2025Study design/context: Nutrition referenceSpecies/context: Food compositionEvidence boundary: Food sources, not canine doses.↩
  16. Rachel S. Fletcher and colleagues. Nicotinamide riboside kinases display redundancy in mediating nicotinamide mononucleotide and nicotinamide riboside metabolism in skeletal muscle cells. Molecular Metabolism · 2017· DOI 10.1016/j.molmet.2017.05.011Study design/context: Mechanistic studySpecies/context: Mice and muscle cellsEvidence boundary: NR biosynthesis, not dog efficacy.↩
  17. Reactome. Complex I oxidises NADH to NAD+, reduces CoQ to CoQH2. ReactomeStudy design/context: Curated reactionSpecies/context: Human pathwayEvidence boundary: CoQ electron transport.↩
  18. Reactome. GPX1 catalyzes 2 glutathione, reduced + H2O2 => glutathione, oxidized + 2 H2O. ReactomeStudy design/context: Curated reactionSpecies/context: Human pathwayEvidence boundary: Glutathione and peroxide.↩
  19. La Petite Labs. Hollywood Elixir Supplement Facts and directions. La Petite LabsStudy design/context: Manufacturer declarationsSpecies/context: Dogs and catsEvidence boundary: Composition and directions.↩ 1 · ↩ 2 · ↩ 3

FAQ

What are antioxidant foods for dogs?

They are foods containing compounds involved in antioxidant chemistry. Blueberries provide anthocyanin pigments; carrots and sweet potatoes provide carotenoids. Complete dog food also supplies antioxidant nutrients such as vitamin E.

Does my dog need antioxidant foods every day?

Your dog needs an appropriate complete diet each day. A separate serving of berries or vegetables is optional; it does not replace the nutritional adequacy of the main food.

Do senior dogs need more antioxidant foods?

Older age does not establish an extra antioxidant requirement. The study involved a fortified diet and enrichment. Choose a texture your dog can manage comfortably.

Can a large dog have a larger portion?

Follow your dog’s calorie allowance; size alone does not set an antioxidant portion.

How soon should I expect to notice a difference?

Enjoyment and tolerance are useful things to observe after offering a new food. Changes in appetite or stool do not measure antioxidant status. These studies do not establish when, or whether, fruit produces visible improvements in coat, vitality or aging.

Can I combine these foods with supplements?

Check for duplicated vitamins and minerals before combining products. Include both the regular food and supplements in that review.

What if my dog takes medicine or eats a therapeutic diet?

Choose extras within the prescribed feeding plan. Have your veterinarian check a proposed supplement’s complete ingredients and serving alongside the medicines and diet already in use.

How much antioxidant food is too much?

Count all extras together, including treats and chews. Your dog’s agreed allowance may be below the general 10% ceiling.

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Discover LPL-01: How This Fits Into a Larger Canine Longevity System

Aging in dogs is not driven by a single pathway. It’s the result of interacting biological systems—energy metabolism, oxidative stress, immune signaling, and structural integrity—changing over time.

This article explores one piece of that puzzle. If you want to understand how these pieces connect—and what actually moves the needle—you need to zoom out.

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