Your dog’s liver and kidneys are essential to their overall health. These vital organs are responsible for filtering toxins, metabolising nutrients, and regulating bodily functions. When they aren’t functioning properly, it can lead to serious health issues. Whether your dog is dealing with a medical condition or you’re just looking to maintain their health proactively, understanding the right foods and supplements can make a huge difference.
In this comprehensive guide, we’ll explore the top 10 vet-recommended foods and supplements that can support your dog’s liver and kidney function, as well as early warning signs of liver or kidney issues.
Why Liver and Kidney Health Matters
The liver and kidneys play a major role in detoxifying the body, processing medications, filtering waste, maintaining hydration, and balancing essential nutrients. These organs also work together to manage blood pressure, hormone regulation, and red blood cell production.
If the liver or kidneys are compromised, it may result in conditions like chronic kidney disease (CKD), liver failure, or hepatic lipidosis.
Common symptoms of liver or kidney problems in dogs include:
- Vomiting or nausea
2. Loss of appetite
3. Increased thirst or urination
4. Lethargy or depression
5. Yellowing of the eyes or gums (liver-specific)
6. Bad breath with a chemical smell
7. Weight loss
8. Diarrhoea or constipation
Early detection and the right nutritional support can greatly improve the quality of life for affected dogs.
Top 10 Foods and Supplements for Liver & Kidney Support
Prescription Veterinary Diets (Hill’s, Royal Canin, Purina Pro Plan)
These specially formulated diets are designed to reduce the workload on the liver and kidneys. They are often lower in protein, phosphorus, and sodium while being enriched with antioxidants, omega-3 fatty acids, and vitamins.
Benefits:
Clinically proven to support organ function
Balanced for chronic conditions
Easy to digest and palatable
Recommended For: Dogs diagnosed with liver disease or CKD
Omega-3 Fatty Acids (Fish Oil)
Omega-3 fatty acids, primarily from fish oil (like salmon, sardines, or anchovies), help reduce inflammation in the kidneys and liver. They also improve circulation and support immune function.
Benefits:
Slows progression of kidney disease
Reduces protein loss in urine
Promotes healthy skin and coat
Dosage: Based on body weight – consult your vet
Note: Use only vet-approved fish oil supplements to avoid toxicity.
Milk Thistle (Silymarin)
Milk thistle is one of the most commonly used natural liver support herbs. It helps regenerate liver cells and protect the liver from toxins, including medications and environmental pollutants.
Benefits:
Antioxidant-rich
Supports liver detoxification
Promotes cell regeneration
Recommended Form: Capsule, powder, or liquid extract
Caution: Should be given under veterinary guidance.
Dandelion Root
Dandelion is a natural diuretic that supports both liver and kidney function. It helps flush toxins from the body and supports digestion.
Benefits:
- Aids detoxification
2. Supports bile production
3. Reduces fluid retention
Use: Often found in liver/kidney supplement blends.
Watermelon and Cucumbers (Hydration Boosters)
Keeping your dog hydrated is key to supporting kidney function. Watermelon and cucumber are water-dense fruits that help increase fluid intake and promote healthy urination.
Benefits:
- High water content
2. Low in calories
3. Contain vitamins A, B6, and C
Caution: Remove seeds and rinds before serving.
High-Quality Lean Proteins (in moderation)
Dogs with liver or kidney issues often need a protein-controlled diet. However, lean proteins like turkey, chicken, or eggs (cooked and plain) can still provide essential amino acids when given in moderation.
Benefits:
Helps maintain muscle mass
Provides essential nutrients
Recommended Amount: Based on vet guidance, especially in CKD.
Antioxidant-Rich Vegetables (Carrots, Blueberries, Pumpkin)
Vegetables high in antioxidants help fight oxidative stress in the liver and kidneys. Carrots, blueberries, and pumpkin are excellent choices.
Benefits:
- Support immune health
2. Improve digestion
3. Provide fibre and essential nutrients
Serving Tips: Lightly steam or mash for easy digestion.
Coenzyme Q10 (CoQ10)
CoQ10 is a compound that helps produce energy in cells and supports cardiovascular and liver health.
Benefits:
1. Antioxidant properties
2. Supports liver detox
3. Aids energy production
4. Form: Capsules or soft chews for pets
Note: Use the correct dog-specific dosage.
Phosphorus Binders
In dogs with kidney disease, excess phosphorus can accumulate in the blood. Phosphorus binders help prevent further kidney damage by limiting phosphorus absorption.
Benefits:
Slows progression of CKD
Protects kidney function
Form: Tablets or powders added to food
Important: Only under veterinary prescription.
Probiotics
Gut health is directly linked to liver and kidney function. Probiotics help maintain a balanced microbiome, reduce toxin load, and support nutrient absorption.
Benefits:
Supports digestion
Reduces inflammation
Improves immune system response
Sources: Yogurt (plain, unsweetened), or vet-approved probiotic supplements.
Final Thoughts
Proactive nutrition is one of the best ways to support your dog’s liver and kidney health. Whether you’re managing a diagnosed condition or just looking to give your furry friend the best care possible, the right diet and supplements can make all the difference.
Remember:
- Always consult your veterinarian before making dietary changes.
- Combine diet with regular check-ups and lab work.
- Look for high-quality, vet-recommended products.
Your dog deserves a long, healthy life—and it all starts with what goes in their bowl.