From itchy skin to achy joints, these supplements for dogs are nothing to woof at

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Some call a dog man’s best friend, but if you’re an actual pet parent, you know they’re bona fide family members. 

Besides being a much cuter alternative to a fancy alarm system, they provide companionship and the type of love some of us don’t even experience with other humans.

Having a dog has been scientifically shown to reduce stress and slow cognitive decline, giving owners all the more reason to provide their four-legged pals with the best care. While that can come in the way of the top food and treats, the best dog supplements offer another way to support their well-being.

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Like supplements for humans, supplements for dogs can fill nutritional gaps, improve digestion, joint health and mobility — all the things that lead to a happier pet.

Not all supplements are created equal, so this isn’t the type of product to practice your blind buying skills on.

For tips on what to look for and avoid, jump to our FAQ below, or keep scrolling to see our tight roundup of the top supplements for your furry friend. Note: It’s important to speak with your veterinarian before adding anything new to your dog’s routine.

Product Spotlight

Best Hip and Joint Supplement for Dogs: Wuffes

Dog sniffing Wuffes Hip & Joint Chews, with a "2025 Pet Innovation Award" seal.wuffes

Pros:

  • Rapid results are common, with 94% of dogs showing improved mobility in only 3 weeks.
  • Fast shipping with orders leaving the USA warehouse within 24 hours of purchase.
  • Subscription options provide a 10% discount that lowers the daily cost to a more affordable $1.50.

Cons:

  • Achieving the fastest results requires doubling the daily dosage for the initial 3-week period.

Wuffes is a premium pet wellness brand dedicated to extending a dog’s active years so that they are healthy and happy. What you feed your dog is like fuel for cars. You want to put in premium products to help them run as long as they can.

Rather than just being a treat, its Hip & Joint Chews are a high-potency, vet-formulated health intervention designed to combat the inflammation and cartilage breakdown that affects dogs as they age.

Based on the brand’s site, mobility improved for 94% of dogs within just 3 weeks of doubling daily chews, with 99% seeing results after 90 days.

Every order is processed quickly and shipped from a USA-based warehouse within 24 hours. Owners can choose a convenient 30-day delivery cycle that reduces the daily cost to just $1.50, offering a 10% savings over the standard $1.67 rate while making sure their pet never misses a day of essential support.

By using these scientifically formulated chews to enhance bone and joint health, you’ll see your dog regain their vitality through improved mobility, a renewed eagerness to play and a visible ease in leaping to and from the bed — even when they know they’re not supposed to be up there.

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Best Digestive Supplement for Dogs: Purina Pro Plan FortiFlora

A box of Purina Pro Plan probioticsAmazon

Pros:

  • Provides relief from diarrhea.
  • Powder formula is easy to mix in wet food.
  • Comes in a liver flavor pets love.

Cons:

  • Serving size may overwhelm smaller portions of wet food.

Changes in lifestyle, medication, or stress levels can negatively impact a dog’s stool quality. To keep things moving in the right direction, many vets recommend Purina Pro Plan FortiFlora, which supports intestinal balance with a single-strain probiotic.

Its powder form is easy to administer, dissolving into wet food without a trace. Most pet owners report that animals enjoy the liver flavor, though some say the serving size may be too much for smaller dogs, even if spread over two feedings. While it may not be a solution for pets with serious digestive issues (see your vet to rule out worms and other potential causes), many dogs experience relief and healthier bowel movements with this added to their routine.


Best Calming Supplements for Dogs: Cornbread Full Spectrum CBD Oil for Pets

A bottle of CBD for dog, its dropper and its box.Cornbread

Pros:

  • GMP-certified facilities.
  • Reduces anxiety and aids mobility.
  • Made with USDA organic ingredients.

Cons:

  • Only available in one dose.

Made from Kentucky-grown organic hemp, this full-spectrum CBD offers natural stress relief for dogs, as well as cats. Containing 33 milligrams of hemp flower, dogs literally lap up this liquid formulated in a delicious vegan corndog flavor. While it’s also a great option for dogs with mobility issues, many pet owners like to give it to their fur babies before fireworks or travel. “We use this during the summer months,” one pet owner wrote in their review. “A lot of fireworks, even on July 5th, have my German shepherds jumping and hearts pounding through their chests. [This] keeps them calm enough but not knocked out.”


Best Allergy Oil Supplement for Dogs: Nordic Naturals Omega-3 Pet

A bottle of Omega-3 PetAmazon

Pros:

  • Easy to administer.
  • Also supports joint health.
  • No artificial flavors or dyes.

Cons:

  • Does not include a dropper.

Pet experts often recommend Omega-3s for dogs with itchy and inflamed skin. Nordic Naturals Omega-3 is high quality, rich in EPA and DHA, and promotes a healthier inflammatory response. It’s simple, effective and can even help improve the look of your pet’s coat. Highly rated by pet owners who purchased the supplement through Amazon, this fish oil supplement for dogs has been called everything from “magic in a bottle” to simply “magic” for easing allergy symptoms.


Best Vitamin Supplement for Dogs: Greenies 8-in-1 Multi-Benefit Soft Dog Chews Supplements

A bottle of pet chews from GreeniesChewy

Pros:

  • NASC Certified.
  • Includes vitamin C for a dose of antioxidants.
  • Tub container helps keep chews fresh.

Cons:

  • Dogs under 25 pounds need to have chews torn in half.

If you’re looking for a simple supplement to support nutritional gaps and overall health, this multi-vitamin supplement from Greenies is a great option. It has a variety of actives, including glucosamine for joint health, omega-3 fatty acids and L-carnitine, all of which work together to help your dog feel its best. The chewy texture and chicken flavor make them think they’re enjoying a treat, plus the formula has a yeast culture to promote better digestive health. Highly rated by customers on Chewy, it earns high marks for effectiveness, long-term benefits and ease of use.


FAQ

What supplements should all dogs take?

While a whole diet should provide adequate nutrients for your pet, that doesn’t always happen. Vet recommendations will vary depending on your dog’s unique needs, but the supplements most commonly recommended are as follows:

  • Omega-3 Fatty Acids (EPA & DHA): To support a healthy coat and reduce inflammation.
  • Probiotics & Prebiotics: For a healthy microbiome and digestive tract.
  • Joint Supplements: Search out supplements with MSM, Glucosamine and Chondroitin, which have been shown to promote muscle recovery, cartilage and bone health.

What ingredients should I avoid in dog supplements?

When selecting a dog supplement, avoid known toxins and unnecessary preservatives. Things to watch for include:

  • Artificial dyes: Color dyes (think Red #40, Yellow #5) are for superficial purposes and may trigger an allergic reaction in your pet.
  • BHA and BHT: Shown to have negative effects in animals.
  • Garlic and Onion: Known to be harmful to dogs, similar to chocolate.

Do vets recommend supplements for dogs?

Vets don’t typically recommend supplements if your dog is eating a whole and balanced diet. However, if it’s experiencing certain health conditions, such as dry skin or arthritis, a supplement may be recommended. If you’re concerned about the health of your pet, it’s important to take them to a medical professional instead of trying to treat the problem yourself. While it may seem cost-effective in the short term, there could be underlying issues that need to be addressed.


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