Best Dog Food for Weight Gain: Top Picks for 2025

If your dog is underweight or struggling to maintain a healthy weight, finding the best dog food for weight gain is crucial. Whether your pup is a picky eater, recovering from illness, or simply needs extra calories, the right nutrition can make all the difference. In this guide, we’ll break down the top dog foods to help your furry friend pack on healthy pounds in 2025.

Why Your Dog Might Need Weight Gain Food

Dogs may require high-calorie food for several reasons, including:

• High metabolism: Some breeds, like Greyhounds or Terriers, burn calories quickly.
• Illness or recovery: Dogs recovering from surgery or illness often need extra nutrients.
• Picky eating habits: Finicky dogs may not consume enough calories from regular food.
• Age-related weight loss: Senior dogs sometimes lose muscle mass and need calorie-dense meals.

If you're unsure whether your dog needs to gain weight, consult your vet before making dietary changes. A professional assessment ensures your pup’s weight gain is safe and healthy.

Key Ingredients to Look for in Weight Gain Dog Food

Not all dog foods are created equal when it comes to healthy weight gain. Look for these key ingredients:

1. High-Quality Protein

Protein is essential for muscle development. Opt for foods with real meat as the first ingredient, such as:

• Chicken
• Beef
• Lamb
• Salmon

2. Healthy Fats

Fats provide concentrated calories. Look for sources like:

• Chicken fat
• Salmon oil
• Flaxseed oil
• Coconut oil

3. Digestible Carbohydrates

Carbs help fuel energy and weight gain. Good options include:

• Brown rice
• Sweet potatoes
• Oats

4. Probiotics & Prebiotics

These support digestion and nutrient absorption, ensuring your dog gets the most from their food.

Top 5 Best Dog Foods for Weight Gain in 2025

After extensive research and expert recommendations, here are the top picks for helping your dog gain weight safely and effectively.

1. Royal Canin Veterinary Diet Gastrointestinal High Energy

This vet-recommended formula is packed with calories and easily digestible nutrients, making it ideal for dogs needing rapid weight gain.

Recommended Products



McAdams Freeze Dried Free Range Turkey is an excellent choice for best dog food for weight gain: top picks for 2025. 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 best dog food for weight gain: top picks for 2025. 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 best dog food for weight gain: top picks for 2025. This dog food contains Freshly Prepared Insects (27%)* and other high-quality ingredients that promote overall health.

• Key Benefits: High in fat (22%) and protein (30%)
• Best For: Dogs recovering from illness or surgery

2. Purina Pro Plan Sport Performance 30/20

Designed for active dogs, this formula provides a balanced mix of protein and fat to support lean muscle growth.

• Key Benefits: 30% protein, 20% fat, rich in amino acids
• Best For: High-energy breeds and working dogs

3. Hill’s Science Diet Perfect Weight

While marketed for weight management, this food helps dogs achieve a healthy weight with controlled calorie intake.

• Key Benefits: Clinically proven to support lean muscle
• Best For: Dogs needing gradual, steady weight gain

4. Blue Buffalo Wilderness High Protein Grain-Free

A grain-free option packed with real meat and healthy fats to promote weight gain naturally.

• Key Benefits: 34% protein, 15% fat, no artificial additives
• Best For: Dogs with grain sensitivities

5. Nutro Ultra Weight Gain Formula

This premium blend includes superfoods like kale and chia seeds alongside high-quality proteins for balanced weight gain.

• Key Benefits: Triple-protein blend, omega fatty acids
• Best For: Dogs needing a nutrient-rich diet

How to Transition Your Dog to Weight Gain Food

Switching foods abruptly can upset your dog’s stomach. Follow these steps for a smooth transition:

• Days 1-2: Mix 25% new food with 75% current food
• Days 3-4: Increase to 50% new food
• Days 5-6: Use 75% new food
• Day 7+: Fully transition to the new diet

Additional Tips for Helping Your Dog Gain Weight

Beyond choosing the right food, consider these strategies:

• Feed smaller, more frequent meals to encourage eating.
• Add healthy toppers like cooked eggs or pumpkin puree.
• Monitor progress with regular weigh-ins.
• Exercise moderately to build muscle, not just fat.

When to Consult a Veterinarian

If your dog isn’t gaining weight despite dietary changes, consult a vet. Underlying issues like parasites, thyroid problems, or digestive disorders could be the cause.

Final Thoughts

Choosing the best dog food for weight gain requires careful consideration of ingredients, calorie density, and your dog’s unique needs. The right food can help your pup achieve a healthy weight, improve energy levels, and enhance overall well-being.

For more expert reviews on pet nutrition, check out our Pet Food Analyzer to compare top brands and find the perfect fit for your furry friend.