Dog Supplement
Reviews and Ratings

Science-backed insights and honest reviews to help you choose the best supplements for your dog

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Featured Reviews

Our most popular dog supplement reviews this month! Whether you’re looking to support your dog’s joints, digestion, immune system, or overall wellness, we’ve highlighted top-rated products to help you make informed choices.

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  • Innovet Advanced Mobility Support Chews

    Innovet Advanced Mobility Support Product Image

    Ingredient Transparency:

    3 / 5

    Scientific Support:

    3.5 / 5

    Brand Score:

    3.5 / 5

    overall Rating:

    3.5 / 5

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    Product Overview

    Innovet Advanced Mobility Support Chews combine Hemp Extract with Glucosamine and Green-Lipped Mussel to support joint health. Although appealing to dogs and easy to give, the lower hemp amount makes them much better suited for small breeds or preventative care rather than managing significant stiffness in large dogs.

    Key Benefits

    • Supports daily comfort with hemp extract.
    • Promotes healthy cartilage using Glucosamine.
    • Rich in Omega-3s from Wild Alaskan Salmon Oil.
    • Soft texture perfect for picky eaters.

    Pros

    • Strong, savory scent that appeals to most dogs.
    • Soft texture is easy to chew.
    • Gentle formula for sensitive stomachs.
    • Mess-free compared to oils.

    Cons

    • Low potency for big dogs.
    • Very expensive for large breeds.
    • Hemp amount lower than some study recommendations.
    • Lacks NASC quality seal.

    Bottom line

    These soft chews are a great choice for picky small dogs needing mild joint support. The flavorful formula makes administration effortless. However, owners of large dogs or those needing stronger support for significant discomfort will find better value and results with concentrated oils or higher-strength powders.

  • Zesty Paws Senior Advanced 11-in-1 Multivitamin Bites

    Zesty Paws 11 in 1 Multivitamin Bites Product Image

    Ingredient Transparency:

    4 / 5

    Scientific Support:

    4 / 5

    Brand Score:

    4.5 / 5

    overall Rating:

    4 / 5

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    Product Overview

    Zesty Paws 11-in-1 Multivitamin Bites offer senior dogs support in 11 health areas, like joints and immunity, with proven ingredients like omega-3s. However, some components, such as glucosamine, lack strong evidence, and it may be unnecessary for dogs on balanced diets. It’s a convenient option but not a universal fix.

    Key Benefits

    • Supports joint health and mobility with omega-3s.
    • Boosts immunity and brain function with antioxidants.
    • Promotes skin and coat health.
    • Convenient all-in-one chew for multiple health needs.

    Pros

    • Proven joint and heart support from omega-3s.
    • Easy to use with broad health coverage.

    Cons

    • Weak evidence for some ingredients like glucosamine.
    • May be redundant for dogs on complete diets.

    Bottom line

    Zesty Paws 11-in-1 Multivitamin Bites are a solid choice for senior dogs needing extra support, especially in joint and immune health. However, they’re not essential for all dogs, particularly those on balanced diets. Consult your vet to see if they fit your pup’s needs.

  • Purina Pro Plan Veterinary Supplements FortiFlora

    Purina Pro Plan Veterinary Supplements FortiFlora Product Image

    Ingredient Transparency:

    3.5 / 5

    Scientific Support:

    4 / 5

    Brand Score:

    5 / 5

    overall Rating:

    4 / 5

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    Product Overview

    Purina FortiFlora is a widely recommended probiotic supplement distinguished by its guaranteed bacterial stability and exceptional palatability. It is designed to support immune health and help manage stress-related digestive upset. While highly reliable for these specific uses, the formula relies on animal digest for flavor and offers a lower colony-forming unit (CFU) count than some therapeutic alternatives.

    Key Benefits

    • Formulated to support a healthy immune system
    • Supports stool quality and flatulence reduction
    • Encourages appetite through savory flavoring
    • Helps manage diarrhea associated with antibiotic therapy

    Pros

    • Verified stability of live bacteria
    • Exceptional palatability for picky eaters
    • Suitable for most puppies and adult dogs

    Cons

    • Higher cost per serving than bulk powders
    • Includes animal digest and brewers yeast
    • Lower CFU potency than some clinical competitors

    Bottom line

    FortiFlora stands out as a reliable, easy-to-administer option for dog owners. While it may not be the most potent probiotic on the market, its proven stability and high acceptance rate make it a top consideration for helping manage common stress-related digestive issues and supporting immune health.

  • Zesty Paws 8-in-1 Multivitamin Bites

    Zesty Paws 8 in 1 Multivitamin Bites Product Image

    Ingredient Transparency:

    4 / 5

    Scientific Support:

    3.5 / 5

    Brand Score:

    3 / 5

    overall Rating:

    3.5 / 5

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    Product Overview

    Zesty Paws 8-in-1 Bites provide convenient, tasty daily maintenance for healthy dogs. While ingredients like OptiMSM are high-quality, the recent manufacturing recall raises caution. Ultimately, the dosages for joints and skin are too low for managing established conditions, making it best for prevention only.

    Key Benefits

    • Supports joint, gut, and heart health daily.
    • Tasty soft chew format replaces pills to simplify administration.
    • Includes branded ingredients like OptiMSM for better sourcing traceability.

    Pros

    • High palatability makes daily dosing stress-free.
    • NASC certification ensures third-party quality assurance.
    • Convenient all-in-one formula simplifies routines.

    Cons

    • Low Omega-3s are insufficient for inflammation.
    • Recent manufacturing safety recall raises caution.
    • Unverified enzyme blend potency lacks transparency.

    Bottom line

    This supplement is a great preventative choice for healthy dogs due to high convenience and taste. However, it lacks the therapeutic potency needed for seniors with established joint or skin issues. It is best used as nutritional insurance rather than a targeted medical treatment.

  • VetriScience Extra Strength Healthy Hip & Joint

    VetriScience Extra Strength Healthy Hip & Joint Product Image

    Ingredient Transparency:

    5 / 5

    Scientific Support:

    4.5 / 5

    Brand Score:

    4 / 5

    overall Rating:

    4.5 / 5

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    Product Overview

    Extra Strength Healthy Hip & Joint (formerly GlycoFlex 3) targets senior dog mobility using Green Lipped Mussel. While the NASC seal confirms quality, the strong marine smell and reliance on internal research are notable downsides. Its transparent, high-potency labeling makes it a strong consideration for advanced joint support.

    Key Benefits

    • Manufacturer-funded study reported a 41% increase in hind leg strength.
    • Supports joint comfort and healthy inflammation response.
    • Provides nutrients for cartilage maintenance and joint structure.

    Pros

    • Transparent ingredient labeling lists exact dosages
    • NASC quality seal confirms strict safety audits
    • Includes clinical levels of Green Lipped Mussel

    Cons

    • Strong marine odor is unpleasant
    • Efficacy claims rely on older internal research
    • Chews can sometimes arrive hard or stale

    Bottom line

    This high-dose supplement targets stiffness and aging joints. While expensive and smelly, the NASC safety seal and transparent ingredients offer verified value. It is best suited for seniors or working dogs, though buyers should note the efficacy data comes mainly from internal brand research.

DOG SUPPLEMENTS 101

The Complete Guide to Dog Supplements

Do dogs really need supplements? We break down the evidence behind probiotics, multivitamins, and joint support. Learn how to identify safe products and integrate them into your dog’s wellness strategy.

Read the Guide
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