Best Kidney Supplements for Dogs 2026: According to Reviews | Chewy

Best Kidney Supplements for Dogs

How we created this kidney supplement list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best kidney supplements for dog.
We scanned thousands of customer reviews and ratings and scored each product based on its performance against each of the key considerations. We then considered how popular a product is with Chewy customers and combined that with its key consideration scores to create the list of the best kidney supplements for dogs.

Key kidney supplement considerations

Effectiveness in Reducing Kidney Disease Symptoms

Digestive Tolerance and Side Effects

Palatability and Ease of Consumption

Duration of Effectiveness

Our Top Picks

1
Vetoquinol Renal K+ Gel Kidney Supplement for Cats & Dogs, 5-oz tube
Vetoquinol Renal K+ Gel Kidney Supplement for Cats & Dogs, 5-oz tube
Vetoquinol Renal K+ Gel Kidney Supplement for Cats & Dogs, 5-oz tube
Vetoquinol Renal K+ Gel Kidney Supplement for Cats & Dogs, 5-oz tube
Vetoquinol Renal K+ Gel Kidney Supplement for Cats & Dogs, 5-oz tube

Vetoquinol Renal K+ Gel Kidney Supplement for Cats & Dogs, 5-oz tube

Rated 4.4 out of 5 stars
568
$27.49 Chewy Price
($5.50/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Effectiveness in Reducing Kidney Disease Symptoms

4.4/5
Great

Digestive Tolerance and Side Effects

4.0/5
Great

Palatability and Ease of Consumption

4.1/5
Great

Duration of Effectiveness

4.3/5
Great

Is this kidney supplement right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

Purified Water, Potassium Gluconate, Sodium Carboxymethylcellulose, Potassium Sorbate, Sodium Benzoate

Food Flavor

Unflavored
2
Wonder Paws Superhero Milk Thistle Liver & Kidney Health Liquid Supplement for Dogs, 2-fl oz bottle
Wonder Paws Superhero Milk Thistle Liver & Kidney Health Liquid Supplement for Dogs, 2-fl oz bottle
Wonder Paws Superhero Milk Thistle Liver & Kidney Health Liquid Supplement for Dogs, 2-fl oz bottle
Wonder Paws Superhero Milk Thistle Liver & Kidney Health Liquid Supplement for Dogs, 2-fl oz bottle
Wonder Paws Superhero Milk Thistle Liver & Kidney Health Liquid Supplement for Dogs, 2-fl oz bottle
Wonder Paws Superhero Milk Thistle Liver & Kidney Health Liquid Supplement for Dogs, 2-fl oz bottle
Wonder Paws Superhero Milk Thistle Liver & Kidney Health Liquid Supplement for Dogs, 2-fl oz bottle
Wonder Paws Superhero Milk Thistle Liver & Kidney Health Liquid Supplement for Dogs, 2-fl oz bottle

Wonder Paws Superhero Milk Thistle Liver & Kidney Health Liquid Supplement for Dogs, 2-fl oz bottle

Rated 4.4 out of 5 stars
322
$19.95 Chewy Price
($9.98/fl oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Effectiveness in Reducing Kidney Disease Symptoms

4.3/5
Great

Digestive Tolerance and Side Effects

4.3/5
Great

Palatability and Ease of Consumption

4.4/5
Great

Duration of Effectiveness

4.3/5
Great

Is this kidney supplement right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

Omega-3 Fatty Acids (from Salmon Oil) with 75 mg EPA and 85 mg DHA: 250 mg, Milk Thistle Extract (Sylibum marianum) (Seed): 50 mg, Curcumin C3 Complex Turmeric Root Extract (95% Curcuminoids) (Curcuma longa): 27 mg

Special Diet

Human-Grade, Natural
3
Rx Vitamins Phos-Bind Kidney Support Dog & Cat Supplement, 35-g bottle
Rx Vitamins Phos-Bind Kidney Support Dog & Cat Supplement, 35-g bottle
Rx Vitamins Phos-Bind Kidney Support Dog & Cat Supplement, 35-g bottle
Rx Vitamins Phos-Bind Kidney Support Dog & Cat Supplement, 35-g bottle
Rx Vitamins Phos-Bind Kidney Support Dog & Cat Supplement, 35-g bottle
Rx Vitamins Phos-Bind Kidney Support Dog & Cat Supplement, 35-g bottle

Rx Vitamins Phos-Bind Kidney Support Dog & Cat Supplement, 35-g bottle

Rated 4.5 out of 5 stars
541
$21.84 Chewy Price
($0.63/g)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Effectiveness in Reducing Kidney Disease Symptoms

4.2/5
Great

Digestive Tolerance and Side Effects

4.2/5
Great

Palatability and Ease of Consumption

4.2/5
Great

Duration of Effectiveness

4.3/5
Great

Is this kidney supplement right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

Active Ingredients Per 1 (1/8 tsp) scoop: Aluminum Hydroxide (USP) 250mg, Active Ingredients Per 1 (1/4 tsp) scoop: Aluminum Hydroxide (USP) 500mg

Food Flavor

Unflavored
4
Pet Wellbeing Kidney Support GOLD Bacon Flavored Liquid Kidney Supplement for Dogs & Cats, 4-oz bottle
Pet Wellbeing Kidney Support GOLD Bacon Flavored Liquid Kidney Supplement for Dogs & Cats, 4-oz bottle
Pet Wellbeing Kidney Support GOLD Bacon Flavored Liquid Kidney Supplement for Dogs & Cats, 4-oz bottle
Pet Wellbeing Kidney Support GOLD Bacon Flavored Liquid Kidney Supplement for Dogs & Cats, 4-oz bottle
Pet Wellbeing Kidney Support GOLD Bacon Flavored Liquid Kidney Supplement for Dogs & Cats, 4-oz bottle
Pet Wellbeing Kidney Support GOLD Bacon Flavored Liquid Kidney Supplement for Dogs & Cats, 4-oz bottle
Pet Wellbeing Kidney Support GOLD Bacon Flavored Liquid Kidney Supplement for Dogs & Cats, 4-oz bottle
Pet Wellbeing Kidney Support GOLD Bacon Flavored Liquid Kidney Supplement for Dogs & Cats, 4-oz bottle
Pet Wellbeing Kidney Support GOLD Bacon Flavored Liquid Kidney Supplement for Dogs & Cats, 4-oz bottle

Pet Wellbeing Kidney Support GOLD Bacon Flavored Liquid Kidney Supplement for Dogs & Cats, 4-oz bottle

Rated 4.4 out of 5 stars
641
$64.95 Chewy Price
($16.24/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Effectiveness in Reducing Kidney Disease Symptoms

4.3/5
Great

Digestive Tolerance and Side Effects

4.1/5
Great

Palatability and Ease of Consumption

4.3/5
Great

Duration of Effectiveness

4.4/5
Great

Is this kidney supplement right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

Active Ingredients: A Proprietary Blend of Rehmannia Root (Rehmannia glutinosa), Cordyceps Mycelium (Cordyceps militaris), Astragalus Root (Astragalus membranaceus), Dong Quai Root (Angelica sinensis). ... 400 mg per ml Herbs are certified organic or selectively imported., Inactive ingredients: Deionized water

Food Flavor

Bacon
5
Virbac Nephrodyl Synbiotic Capsules for Kidney Support for Dogs & Cats, 60 count
Virbac Nephrodyl Synbiotic Capsules for Kidney Support for Dogs & Cats, 60 count
Virbac Nephrodyl Synbiotic Capsules for Kidney Support for Dogs & Cats, 60 count
Virbac Nephrodyl Synbiotic Capsules for Kidney Support for Dogs & Cats, 60 count
Virbac Nephrodyl Synbiotic Capsules for Kidney Support for Dogs & Cats, 60 count
Virbac Nephrodyl Synbiotic Capsules for Kidney Support for Dogs & Cats, 60 count
Virbac Nephrodyl Synbiotic Capsules for Kidney Support for Dogs & Cats, 60 count
Virbac Nephrodyl Synbiotic Capsules for Kidney Support for Dogs & Cats, 60 count

Virbac Nephrodyl Synbiotic Capsules for Kidney Support for Dogs & Cats, 60 count

Rated 4.5 out of 5 stars
168
$68.69 Chewy Price
($1.15/ea)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Effectiveness in Reducing Kidney Disease Symptoms

4.0/5
Great

Digestive Tolerance and Side Effects

3.9/5
Good

Palatability and Ease of Consumption

4.1/5
Great

Duration of Effectiveness

4.4/5
Great

Is this kidney supplement right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

**Inactive Ingredients:** Magnesium Stearate, Vegetable Capsule (Gellan Gum, Hypromellose)

Packaging Type

Tub
6
Zesty Paws Advanced Urinary Tract Bites Chicken Flavored Soft Chew Kidney Supplement for Senior Dogs, 90 count
Zesty Paws Advanced Urinary Tract Bites Chicken Flavored Soft Chew Kidney Supplement for Senior Dogs, 90 count
Zesty Paws Advanced Urinary Tract Bites Chicken Flavored Soft Chew Kidney Supplement for Senior Dogs, 90 count
Zesty Paws Advanced Urinary Tract Bites Chicken Flavored Soft Chew Kidney Supplement for Senior Dogs, 90 count
Zesty Paws Advanced Urinary Tract Bites Chicken Flavored Soft Chew Kidney Supplement for Senior Dogs, 90 count
Zesty Paws Advanced Urinary Tract Bites Chicken Flavored Soft Chew Kidney Supplement for Senior Dogs, 90 count
Zesty Paws Advanced Urinary Tract Bites Chicken Flavored Soft Chew Kidney Supplement for Senior Dogs, 90 count
Zesty Paws Advanced Urinary Tract Bites Chicken Flavored Soft Chew Kidney Supplement for Senior Dogs, 90 count
Zesty Paws Advanced Urinary Tract Bites Chicken Flavored Soft Chew Kidney Supplement for Senior Dogs, 90 count

Zesty Paws Advanced Urinary Tract Bites Chicken Flavored Soft Chew Kidney Supplement for Senior Dogs, 90 count

Rated 4.4 out of 5 stars
98
$42.97 Chewy Price
($0.48/ea)
Promo, Save 15% with code SUMMER15

Our ratings

Effectiveness in Reducing Kidney Disease Symptoms

4.4/5
Great

Digestive Tolerance and Side Effects

4.4/5
Great

Palatability and Ease of Consumption

4.5/5
Great

Duration of Effectiveness

4.4/5
Great

Is this kidney supplement right for my pet?

Breed Size

All Breeds

Lifestage

Senior

Top Ingredients

Active Ingredients: Cranberry Concentrate (InCRANable(TM)), D-Mannose, Wild Yam Root Powder, Marshmallow (Whole), Astragalus Root

Food Flavor

Chicken
7
AminAvast Kidney Support Dog Supplement, 60 count

AminAvast Kidney Support Dog Supplement, 60 count

Rated 4.6 out of 5 stars
159
$58.00 Chewy Price
($0.97/ea)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Effectiveness in Reducing Kidney Disease Symptoms

4.4/5
Great

Digestive Tolerance and Side Effects

4.2/5
Great

Palatability and Ease of Consumption

4.4/5
Great

Duration of Effectiveness

4.3/5
Great

Is this kidney supplement right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

Active Ingredients: AB070597* (Glycine, L-Aspartic acid, L-Glutamic acid, L-Glutamine, L-Carnosine

Food Flavor

Unflavored
8
Animal Nutritional Products UroMAXX Chews Urinary Kidney & Bladder formula Dog Supplement, 90 count
Animal Nutritional Products UroMAXX Chews Urinary Kidney & Bladder formula Dog Supplement, 90 count
Animal Nutritional Products UroMAXX Chews Urinary Kidney & Bladder formula Dog Supplement, 90 count
Animal Nutritional Products UroMAXX Chews Urinary Kidney & Bladder formula Dog Supplement, 90 count
Animal Nutritional Products UroMAXX Chews Urinary Kidney & Bladder formula Dog Supplement, 90 count
Animal Nutritional Products UroMAXX Chews Urinary Kidney & Bladder formula Dog Supplement, 90 count
Animal Nutritional Products UroMAXX Chews Urinary Kidney & Bladder formula Dog Supplement, 90 count

Animal Nutritional Products UroMAXX Chews Urinary Kidney & Bladder formula Dog Supplement, 90 count

Rated 4.8 out of 5 stars
55
$29.98 Chewy Price
($0.34/ea)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Effectiveness in Reducing Kidney Disease Symptoms

4.2/5
Great

Digestive Tolerance and Side Effects

4.1/5
Great

Palatability and Ease of Consumption

4.4/5
Great

Duration of Effectiveness

4.7/5
Excellent

Is this kidney supplement right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

Blackstrap Molasses, Calcium Propionate, Chickpea Flour, Flax Oil, Glycerin

Special Diet

Natural, Gluten Free, Grain-Free, No Corn No Wheat No Soy...
9
Pet Health Pharma Azovast Plus Capsule Kidney Supplement for Dogs & Cats, 120 count
Pet Health Pharma Azovast Plus Capsule Kidney Supplement for Dogs & Cats, 120 count
Pet Health Pharma Azovast Plus Capsule Kidney Supplement for Dogs & Cats, 120 count
Pet Health Pharma Azovast Plus Capsule Kidney Supplement for Dogs & Cats, 120 count
Pet Health Pharma Azovast Plus Capsule Kidney Supplement for Dogs & Cats, 120 count
Pet Health Pharma Azovast Plus Capsule Kidney Supplement for Dogs & Cats, 120 count
Pet Health Pharma Azovast Plus Capsule Kidney Supplement for Dogs & Cats, 120 count
Pet Health Pharma Azovast Plus Capsule Kidney Supplement for Dogs & Cats, 120 count
Pet Health Pharma Azovast Plus Capsule Kidney Supplement for Dogs & Cats, 120 count

Pet Health Pharma Azovast Plus Capsule Kidney Supplement for Dogs & Cats, 120 count

Rated 4.5 out of 5 stars
102
$49.89 Chewy Price
($0.42/ea)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Effectiveness in Reducing Kidney Disease Symptoms

3.9/5
Good

Digestive Tolerance and Side Effects

4.1/5
Great

Palatability and Ease of Consumption

4.1/5
Great

Duration of Effectiveness

4.2/5
Great

Is this kidney supplement right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

Active Indredients: S. thermophilus, L. acidophilus, B. longum, L.casei

Health Feature

Kidney Care
10
Earth Animal Apothecary Urinary & Kidney Relief Herbal Liquid Supplement for Dogs & Cats, 2-fl oz bottle
Earth Animal Apothecary Urinary & Kidney Relief Herbal Liquid Supplement for Dogs & Cats, 2-fl oz bottle
Earth Animal Apothecary Urinary & Kidney Relief Herbal Liquid Supplement for Dogs & Cats, 2-fl oz bottle
Earth Animal Apothecary Urinary & Kidney Relief Herbal Liquid Supplement for Dogs & Cats, 2-fl oz bottle
Earth Animal Apothecary Urinary & Kidney Relief Herbal Liquid Supplement for Dogs & Cats, 2-fl oz bottle
Earth Animal Apothecary Urinary & Kidney Relief Herbal Liquid Supplement for Dogs & Cats, 2-fl oz bottle
Earth Animal Apothecary Urinary & Kidney Relief Herbal Liquid Supplement for Dogs & Cats, 2-fl oz bottle
Earth Animal Apothecary Urinary & Kidney Relief Herbal Liquid Supplement for Dogs & Cats, 2-fl oz bottle
Earth Animal Apothecary Urinary & Kidney Relief Herbal Liquid Supplement for Dogs & Cats, 2-fl oz bottle

Earth Animal Apothecary Urinary & Kidney Relief Herbal Liquid Supplement for Dogs & Cats, 2-fl oz bottle

Rated 4.7 out of 5 stars
56
$20.99 Chewy Price
($10.50/fl oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Effectiveness in Reducing Kidney Disease Symptoms

4.5/5
Great

Digestive Tolerance and Side Effects

4.3/5
Great

Palatability and Ease of Consumption

4.6/5
Excellent

Duration of Effectiveness

4.5/5
Great

Is this kidney supplement right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

Active Ingredients per 20 drops (1 ml): Proprietary Urinary & Kidney Relief Herbal Blend: (Uva Ursi, Couch Grass, Gravel Root, Yarrow, Cleavers

Special Diet

Natural, Human-Grade, Non-GMO, Vegan...

Frequently Asked Questions about Kidney Supplements for Dogs

Are kidney supplements helpful for dogs with chronic kidney disease?

Some kidney supplements can be helpful for dogs with chronic kidney disease, but ask your vet to be sure. Supplements with ingredients like omega-3 fatty acids, B vitamins and antioxidants like vitamin C and E may help ease the symptoms of kidney disease in some dogs. Kidney supplements that bind phosphorous can also be helpful for dogs with renal disease. Other supplements may contain proprietary ingredients or natural botanicals to boost kidney function and support overall bladder and kidney health. However, supplements are no substitute for proper medical care and prescription medication, and some supplements may interact negatively with prescription kidney medicines, as well. Talk to your vet before giving your dog any new supplement, especially if your dog has chronic kidney disease.