High-Calorie Dog Food: Best Options for Active and Underweight Dogs

High-Calorie Dog Food: Best Options for Active and Underweight Dogs

If your dog is highly active, recovering from illness, or struggling to maintain a healthy weight, high-calorie dog food can be a game-changer. Just like humans, some dogs need extra calories to fuel their energy or gain weight safely. But with so many options on the market, how do you choose the best one?

In this guide, we’ll break down the top high-calorie dog foods, what to look for in a quality formula, and how to help your pup reach their ideal weight. Whether you have a working dog, a picky eater, or a senior pet needing extra nutrition, we’ve got you covered.

Why High-Calorie Dog Food?

Not all dogs thrive on standard kibble. Some breeds, like Border Collies or Siberian Huskies, burn through calories quickly due to their high energy levels. Others, like Greyhounds or rescue dogs, may struggle to maintain weight due to metabolism or past neglect. High-calorie dog food provides:

• More energy for active or working dogs
• Healthy weight gain for underweight pets
• Denser nutrition for dogs with small appetites
• Muscle support for recovery after illness or surgery

However, not all high-calorie foods are created equal. The best options prioritize quality ingredients, balanced fats, and digestible proteins.

What to Look for in High-Calorie Dog Food

When shopping for high-calorie dog food, keep these key factors in mind:

• Caloric density: Look for at least 400-500 kcal per cup.
• Protein sources: Real meat (chicken, beef, salmon) should be the first ingredient.
• Healthy fats: Omega-3 and omega-6 fatty acids support skin and coat health.
• No fillers: Avoid excessive corn, soy, or artificial additives.
• Digestibility: Probiotics or prebiotic fibers aid nutrient absorption.

If you’re unsure where to start, our Pet Food Analyzer can help compare top brands based on your dog’s needs.

Best High-Calorie Dog Foods for Weight Gain

Here are some of the best high-calorie dog foods for active and underweight dogs:

1. Royal Canin Veterinary Diet Recovery RS

This vet-recommended formula packs over 500 kcal per cup, making it ideal for dogs recovering from illness or surgery. It’s highly digestible and includes antioxidants for immune support.

2. Purina Pro Plan Sport Performance 30/20

Designed for active and sporting dogs, this formula contains 30% protein and 20% fat to sustain energy levels. The real chicken base provides lean muscle support.

3. Hill’s Science Diet Puppy Large Breed

Great for growing large-breed puppies, this food balances calories with joint-supporting nutrients. The DHA from fish oil promotes brain development.

Recommended Products



McAdams Freeze Dried Free Range Turkey is an excellent choice for high-calorie dog food: best options for active and underweight dogs. This dog food contains Boneless Free Range Turkey 86.5% and other high-quality ingredients that promote overall health.


McAdams Freeze Dried Free Range Chicken is an excellent choice for high-calorie dog food: best options for active and underweight dogs. This dog food contains Boneless Free Range Chicken 86% and other high-quality ingredients that promote overall health.


Canagan Insect is an excellent choice for high-calorie dog food: best options for active and underweight dogs. This dog food contains Freshly Prepared Insects (27%)* and other high-quality ingredients that promote overall health.

4. Blue Buffalo Wilderness High Protein

A grain-free option packed with deboned chicken and sweet potatoes. At 440 kcal per cup, it’s excellent for dogs with food sensitivities.

5. Eukanuba Premium Performance

With 30% protein and a blend of beet pulp for digestion, this formula fuels endurance dogs and working breeds.

How to Safely Help Your Dog Gain Weight

Switching to high-calorie food is just one part of healthy weight gain. Follow these tips to ensure your dog gains weight safely:

• Gradual transitions: Mix new food with old over 7-10 days to avoid stomach upset.
• Small, frequent meals: Offer 3-4 smaller meals instead of one or two large ones.
• Monitor progress: Weigh your dog every 2 weeks to track changes.
• Add healthy toppers: A spoonful of plain pumpkin or salmon oil can boost calories.
• Exercise wisely: Light activity stimulates appetite without burning too many calories.

If your dog isn’t gaining weight despite dietary changes, consult your vet to rule out underlying health issues like parasites or thyroid problems.

Homemade High-Calorie Dog Food Additions

If you prefer supplementing kibble, these homemade additions can safely increase calorie intake:

• Cooked lean ground beef or turkey (drained of excess fat)
• Plain Greek yogurt (rich in protein and probiotics)
• Coconut oil (a teaspoon adds healthy fats)
• Scrambled eggs (cooked without butter or oil)
• Steamed sweet potatoes (for digestible carbs)

Always introduce new foods slowly and in moderation to avoid digestive upset.

Common Mistakes to Avoid

When feeding high-calorie dog food, steer clear of these pitfalls:

• Overfeeding: Too many calories too fast can cause pancreatitis or obesity.
• Low-quality fats: Avoid foods with generic "animal fat" instead of named sources.
• Skipping vet advice: Sudden weight loss or gain warrants a professional opinion.
• Ignoring exercise: Even underweight dogs need movement for muscle tone.

For a deeper dive into balanced nutrition, check out our Pet Food Analyzer to compare brands and formulas.

Final Thoughts

High-calorie dog food can be a lifeline for underweight, active, or recovering dogs—but only if chosen wisely. Focus on premium proteins, healthy fats, and digestible ingredients to support your pup’s health. Always pair dietary changes with regular vet checkups to ensure long-term well-being.

Ready to find the perfect high-calorie food for your dog? Explore our Pet Food Analyzer to discover tailored recommendations based on breed, age, and activity level.