Best Dog Food for Cushing’s Disease in Dogs 2026
Cushing’s disease (hyperadrenocorticism) is one of the most common endocrine disorders in older dogs, particularly Poodles, Dachshunds, Boxers, and Boston Terriers. Diet plays a critical supporting role alongside medical treatment. Here are the five best foods for dogs with Cushing’s disease in 2026. Always manage this condition with veterinary guidance. See our dog food guides for more.
Quick Comparison: Top 5 Picks
| Product | Protein | Best For | Rating | Price |
|---|---|---|---|---|
| Hill’s Prescription Diet w/d Weight Management | Chicken (Prescription) | Cushing’s weight & glucose control | 4.8/5 | Check Price on Chewy |
| Royal Canin Veterinary Diabetic DS37 | Chicken (Prescription) | Glucose management for Cushing’s | 4.8/5 | Check Price on Chewy |
| Purina Pro Plan Weight Management | Chicken | Low-fat weight management | 4.7/5 | Check Price on Chewy |
| Natural Balance Fat Dogs Low Calorie | Chicken | Low-fat, low-calorie Cushing’s support | 4.6/5 | Check Price on Chewy |
| Hill’s Science Diet Perfect Weight | Chicken | OTC low-fat Cushing’s support | 4.6/5 | Check Price on Chewy |
Our Top Picks: In-Depth Reviews
Hill’s Prescription Diet w/d Weight Management
Hill’s Prescription Diet w/d Weight Management offers chicken (prescription) protein ideally suited for cushing’s weight & glucose control. This formula provides complete and balanced nutrition with an emphasis on quality ingredients and appropriate calorie density for the target group.
Pros:
- Excellent chicken (prescription) protein source
- Designed for cushing’s weight & glucose control
- High palatability
- AAFCO-approved nutrition
Cons:
- Premium price point
- May not suit every individual dog
- Contains some non-meat ingredients
Royal Canin Veterinary Diabetic DS37
Royal Canin Veterinary Diabetic DS37 is a veterinarian-trusted formula delivering chicken (prescription) protein with excellent digestibility. Its targeted nutrition profile addresses the specific needs of glucose management for cushing’s.
Pros:
- Vet-recommended formula
- Highly digestible ingredients
- Backed by nutritional research
- No artificial additives
Cons:
- Not grain-free
- Higher cost than budget brands
- Transition period may be needed
Purina Pro Plan Weight Management
Purina Pro Plan Weight Management combines quality chicken protein with thoughtfully selected carbohydrate and fat sources. Formulated for low-fat weight management, this option has strong palatability and consistent ingredient quality.
Pros:
- Quality protein as first ingredient
- Consistent ingredient quality
- Strong palatability
- Good value for quality
Cons:
- Contains by-product meal
- Some sensitive dogs may react
- Not ideal for all dietary restrictions
Natural Balance Fat Dogs Low Calorie
Offering chicken protein in a formula built for low-fat, low-calorie cushing’s support, Natural Balance Fat Dogs Low Calorie provides complete nutrition without artificial preservatives, colors, or flavors. A solid choice for health-conscious pet owners.
Pros:
- No artificial preservatives or colors
- Quality protein source
- Good digestibility
- Appropriate for target group
Cons:
- More expensive than grocery-store brands
- Limited store availability in some areas
- Calorie density requires monitoring
Hill’s Science Diet Perfect Weight
Hill’s Science Diet Perfect Weight rounds out our list with chicken protein and a formula tailored for otc low-fat cushing’s support. It offers excellent nutritional value and a strong ingredient panel for the price.
Pros:
- Great value for the quality
- Appropriate for stated use case
- Widely available
- Good ingredient transparency
Cons:
- Not the highest protein content
- Some formulas contain grain
- Palatability varies by individual dog
Buying Guide
How Cushing’s Disease Affects Nutritional Needs
Excess cortisol elevates blood glucose, promotes fat deposition, causes muscle protein breakdown, increases sodium and water retention, and elevates triglycerides. The ideal Cushing’s diet is low carbohydrates, low fat, and high protein.
Managing Concurrent Diabetes
Approximately 10-20% of Cushing’s dogs develop concurrent diabetes mellitus. If your Cushing’s dog is also diabetic, diet management becomes critical: consistent meal timing, high-fiber low-glycemic food, and precise portion control.
Protein to Combat Muscle Wasting
Cortisol-induced proteolysis (muscle breakdown) requires dietary compensation with higher protein intake. Choose foods with 25-30%+ protein (dry matter basis).
Sodium Consideration
High cortisol increases water and sodium retention, contributing to hypertension in many Cushing’s dogs. Low-sodium formulas support blood pressure management.
Frequently Asked Questions
What is the best diet for a dog with Cushing’s disease?
A low-fat, moderate-to-low carbohydrate, high-protein diet is most appropriate. Hill’s Prescription Diet w/d and Royal Canin Diabetic formulas are commonly recommended by veterinarians for Cushing’s dogs.
Should I feed a Cushing’s dog grain-free food?
Grain-free foods are typically high in legumes, which have high glycemic indices. For a Cushing’s dog with glucose metabolism issues, legume-heavy grain-free foods may not be appropriate.
How much should a dog with Cushing’s disease eat?
Cushing’s dogs often have an increased appetite. Strict portion control is essential – use a measuring cup or scale, eliminate all treats unless specifically accounting for them, and divide into 2-3 meals per day.
What treats are appropriate for a dog with Cushing’s disease?
Avoid high-fat and high-sugar treats. Low-calorie options include plain carrot sticks, green beans, cucumber slices, and commercial low-calorie training treats under 5 kcal each.
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