The Best Protein for Dogs — A Guide to Choosing the Right Source for Your Pup
Written by: Dr. Jean Hofve, Holistic Veterinarian, DVM
Some dogs are fierce outdoor adventurers, while others are breadbox-sized couch cuddlers. No matter what kind of furry wolf descendant lives in your home, one thing is universal: dogs need protein. It fuels strong muscles, supports healthy skin and coat, powers recovery, and gives them the energy to wag, run, and play.
But with so many protein choices — beef, chicken, fish, lamb, and even kangaroo — how do you know what’s best for your dog? This guide breaks down the science, the sources, and the life-stage needs so you can feel confident about what goes in your pup’s bowl.
Learn More: How to Read a Pet Food Label
Why Protein Matters for Dogs
Protein is made of amino acids — the building blocks that keep your dog’s body strong and functioning properly. Dogs need 10 essential amino acids they can’t make on their own, so they must get them from food.
High-quality animal proteins such as chicken, beef, eggs, and fish provide complete amino acid profiles and are easier for dogs to digest. Plant proteins can be part of a healthy diet but are typically less bioavailable, meaning your dog gets fewer usable nutrients from them.
What Is “High-Quality Protein”?
Not all proteins are created equal. When choosing a natural dog food, look for:
- A named animal protein (“chicken,” “beef,” “salmon”) as the first ingredient
- Clear labeling — avoid vague terms like “meat meal” or “animal by-products”
- Whole meats or clearly identified meals for reliable amino acid content
- Minimal processing for better digestibility
If your dog has allergies or digestive issues, consider single-source or novel proteins (such as duck, rabbit, or venison). Ethically raised and minimally processed proteins also help ensure your dog gets clean, digestible nutrition.
Biological Protein Value
The biological value of a protein refers to how efficiently your dog’s body can use its amino acids. For dogs:
- Egg whites: 100 (highest)
- Muscle meats (beef, chicken, lamb): ~92
- Organ meats: ~90
- Wheat: ~60
- Corn: ~54
High-heat cooking can reduce biological value, which is one reason many pet parents incorporate raw, freeze-dried, or gently cooked diets into their feeding routines.
The Best Protein Sources for Dogs
Chicken
A lean, highly digestible protein rich in essential amino acids. Great for daily feeding and well tolerated by most dogs.
Beef
A hearty, nutrient-dense protein that builds strong muscles and supports energy. Ideal for active dogs, though some may develop sensitivities over time.
Lamb
An excellent choice for dogs with food sensitivities. Lamb is rich in zinc and iron and supports healthy coats and immune function.
Fish (Salmon, Whitefish, Herring)
High in omega-3 fatty acids, which support skin, coat, joint health, and cognitive function. Rotate with other proteins to avoid excessive mercury exposure.
Novel Proteins (Rabbit, Venison, Kangaroo, Duck)
Ideal for dogs with allergies or sensitive stomachs. Novel proteins minimize irritation and can reset digestion during an elimination diet.
The Best Protein for Different Dog Types
Puppies
Growing pups need extra protein to support rapid development. Look for 28–32% protein from high-quality animal sources.
Large Breeds
Balanced, moderate-protein (around 24–27%) formulas help support slow, steady growth without stressing joints.
Active or Working Dogs
High-protein diets (30%+) fuel endurance, stamina, and recovery after high levels of activity.
Senior Dogs
Older pups still need high-quality, easily digestible protein to maintain muscle. Chicken, fish, eggs, or rabbit are excellent options.
Dogs with Sensitive Stomachs
If your dog is itchy, gassy, or dealing with chronic digestive problems, a novel-protein, single-ingredient, or limited-ingredient diet may help. Try a protein your dog has never eaten — such as venison or duck — for 8–12 weeks and monitor symptoms.
Read More: When to Transition a Puppy to Adult Food
Can Dogs Have Too Much Protein?
It’s a common myth that high-protein diets cause kidney damage. In healthy dogs, high-quality and digestible protein is not harmful. In fact, active dogs often need more protein to sustain energy and muscle mass.
The key is matching protein intake to lifestyle and health needs. Your veterinarian can help guide the best amount for your dog’s age, size, and activity level.
Related: The Top 10 Myths About Pet Food and Nutrition
Are Bones, Antlers & Raw Proteins Safe for Dogs?
Raw diets and natural chews can offer excellent protein sources, but they require supervision and careful sourcing. Choose raw food only from trusted suppliers and monitor your dog when giving hard chews like antlers to avoid dental injuries.
Learn All About Raw Food for Dogs
Protein Powers Every Pup
The building blocks of your dog’s food are the building blocks of their entire life. With high-quality, natural ingredients and the right protein sources, your dog can maintain strong muscles, steady energy, and a vibrant, healthy coat.
Looking for natural dog food made from real, whole ingredients with no artificial additives or preservatives? Explore Only Natural Pet’s full selection of natural dog food — including raw meals, freeze-dried options, kibble, and wet food — to give your dog nutrition that truly supports their well-being.
