Novel Proteins For Dogs; What They Are & Why They Help Sensitive Dogs.

Has your dog been struggling with itchy skin, recurring ear infections, loose stools or an upset stomach after eating certain foods? If you’ve started researching food allergies or sensitive stomachs, you’ve probably come across the term novel protein.

But what does it actually mean?

A novel protein is simply a protein source your dog hasn’t eaten before. For some dogs, that might be rabbit. For others, it might be venison, goat, kangaroo, ostrich or buffalo. The key point is that “novel” doesn’t mean rare, expensive or automatically healthier. It means new to your dog’s individual diet history.

Novel proteins are often used for dogs with suspected food allergies, food intolerances or sensitive digestion because they reduce the chance of feeding a protein your dog has already reacted to.

However, novel proteins are just one part of managing sensitivities. If you’re looking for a complete overview, read our Ultimate Guide to Hypoallergenic Dog Treats, where we explain food sensitivities, elimination diets, single-protein treats and how to choose safer options for sensitive dogs.

If you're wondering whether your dog's symptoms could be linked to their diet, our guide to Signs Your Dog May Have a Food Allergy explains the most common warning signs to look out for, from itchy skin and recurring ear infections to digestive upset and excessive paw licking.

In this guide, we’ll explain what novel proteins are, why they may help, which proteins are often considered novel, and how to choose natural novel protein treats for your dog.

What Is a Novel Protein?

A novel protein is a protein source your dog has not eaten before. That’s the simplest definition. It doesn’t mean the protein is unusual for every dog. It means it is unfamiliar to your dog’s immune system and digestive system. For example, if your dog has eaten chicken, beef, lamb and turkey for years, then those proteins would not be novel for them. But rabbit, goat, venison, kangaroo or ostrich may be novel if they have never had them before. This is why there is no single list of “novel proteins” that applies to every dog. A protein that is novel for one dog may be completely familiar to another. For many dogs in the UK, common proteins include:

• Chicken
• Beef
• Lamb
• Turkey
• Pork
• Duck
• Fish

Less common proteins may include:

• Rabbit
• Venison
• Goat
• Kangaroo
• Ostrich
• Buffalo

The most important thing is your dog’s own food history.

If your dog has already eaten venison treats every week, venison is no longer novel for them. If they’ve never had goat before, goat may be a better option to try.

Why Are Novel Proteins Used for Dogs?

Novel proteins are often used when a dog is showing signs that their current food or treats may not be agreeing with them.

This can include:

• Itchy skin
• Paw licking
• Recurring ear problems
• Loose stools
• Excessive wind
• Vomiting
• Red or irritated skin
• Sensitive digestion
• Reactions after eating certain foods

Of course, these symptoms can have many causes, including environmental allergies, parasites, infections or underlying health conditions. If your dog’s symptoms are ongoing, severe or getting worse, it’s always best to speak to your vet.

But when food is suspected, novel proteins can be useful because they help remove familiar proteins from the diet.

Food Allergies

A food allergy happens when the immune system reacts to something in the diet, often a protein.

Common proteins like chicken or beef appear in lots of dog foods and treats, which means some dogs are exposed to them repeatedly over time. If a dog develops a sensitivity or allergy to one of these proteins, switching to something unfamiliar may help reduce the chance of triggering a reaction.

This is why novel proteins are often used as part of an elimination diet.

Food Intolerances

Food intolerances are different from true allergies.

An intolerance does not necessarily involve the immune system. Instead, a dog may simply struggle to digest certain ingredients well.

This can lead to:

• Loose stools
• Wind
• Gurgly tummy
• Sickness
• General digestive upset

A novel protein may help some dogs because it often comes as part of a simpler, limited-ingredient diet. Fewer ingredients can make it easier to spot what suits your dog and what does not.

Elimination Diets

An elimination diet is a controlled feeding trial designed to help identify food triggers.

This usually involves feeding one carefully chosen protein source and avoiding everything else that could interfere with the results.

That means no mixed treats, no table scraps, no flavoured chews, no sneaky extras and no switching between multiple proteins.

If your dog improves during the trial, previous ingredients can sometimes be reintroduced one at a time to help identify the trigger.

For a true elimination diet, always follow your vet’s advice.

Sensitive Stomachs

Some dogs don’t have a true food allergy but still seem sensitive to lots of foods.

For these dogs, novel proteins can be helpful because many novel protein treats are also:

• Single protein
• Limited ingredient
• Grain free
• Naturally air-dried
• Free from artificial additives
• Easier to track

This makes them a good option for owners who want to keep treats simple and predictable.

If you're unsure which protein to try first, our guide to The Best Proteins for Dogs with Allergies compares popular options like rabbit, venison, goat and ostrich, explaining the benefits of each and helping you choose the most suitable protein for your dog's individual needs.

Which Proteins Are Considered Novel?

There is no universal answer because “novel” depends on what your dog has eaten before.

However, some proteins are more commonly used in everyday dog food, while others are less common and more likely to be novel.

The best novel protein for your dog is not necessarily the rarest one. It is the one your dog has not eaten before and can tolerate well.

For example, if your dog has never eaten rabbit, rabbit may be a good place to start. If they have already had rabbit treats, you may want to consider goat, kangaroo, ostrich or venison instead.

Novel Protein vs Single Protein

Novel protein and single protein are often confused, but they are not the same thing.

A single-protein treat contains only one animal protein source.

A novel protein is a protein your dog has not eaten before.

A treat can be both single protein and novel, but it doesn’t have to be.

For example:

• A chicken treat can be single protein, but not novel if your dog eats chicken regularly.
• A rabbit treat can be single protein and novel if your dog has never had rabbit before.
• A mixed treat containing rabbit and chicken may include a novel protein, but it is not single protein.

For sensitive dogs, single-protein novel treats are often the most useful choice because they make it easier to control what your dog is eating.

If your dog reacts to a mixed treat, it can be difficult to know which ingredient caused the problem. With a single-protein treat, it’s much easier to track.

Although the two terms are often used interchangeably, they describe different things. A treat can be single protein without being novel, and a novel protein treat isn't always the right choice for every dog. If you'd like a more detailed explanation, read our guide to Single Protein Dog Treats Explained, where we cover the benefits of single-protein treats, when to choose them and how they can help dogs with food sensitivities.

Novel Protein vs Hypoallergenic

Novel protein and hypoallergenic are also connected, but they are not exactly the same.

A novel protein is a new protein your dog has not eaten before.

A hypoallergenic diet or treat is designed to reduce the likelihood of triggering a reaction.

Some hypoallergenic diets use novel proteins. Others use hydrolysed proteins, where the protein has been broken down into much smaller pieces so the immune system is less likely to recognise it.

Natural hypoallergenic treats are often:

• Single protein
• Grain free
• Limited ingredient
• Free from artificial colours and preservatives
• Made without common fillers
• Based on less common proteins

However, no treat can be guaranteed hypoallergenic for every dog. Dogs are individuals, and any protein can potentially cause a reaction if that dog is sensitive to it.

That’s why it’s better to think in terms of “suitable for my dog” rather than “safe for every dog”.

It's also common to assume that grain-free treats are automatically better for dogs with food allergies. In reality, most food allergies in dogs are triggered by proteins rather than grains. If you're unsure whether grain-free treats are the right choice, read our guide to Are Grain-Free Dog Treats Better?, where we separate the myths from the facts and explain when a grain-free diet may (or may not) be beneficial.

How to Introduce a Novel Protein

When introducing a novel protein, the key is to keep things slow, simple and consistent.

Choose One Protein

Start with one protein only.

For example, choose rabbit, venison, goat, kangaroo, ostrich or buffalo — not all of them at once.

If you introduce several new proteins in the same week and your dog reacts, you won’t know which one caused the issue.

Keep the Rest of the Diet Consistent

Try not to change everything at once.

If your dog is already on a food that suits them, keep that stable while introducing the new treat slowly.

If you are doing a vet-led elimination diet, follow your vet’s instructions carefully and avoid any extra treats unless they are approved.

Start Small

Give a small amount first and watch how your dog responds.

Even natural treats can upset some dogs if they are given too much too quickly, especially richer proteins or chews.

Start with a small piece, then gradually increase if your dog tolerates it well.

Avoid Mixing Proteins

If your goal is to identify what suits your dog, avoid mixed-protein treats.

Choose simple, single-protein options so you can track your dog’s response properly.

This is especially important for dogs with suspected allergies.

Watch for Changes

Keep an eye on:

• Skin
• Ears
• Paws
• Stool quality
• Wind
• Vomiting
• Itching
• General comfort

A food diary can be really helpful. Write down what your dog eats and any symptoms you notice.

Give It Time

Digestive symptoms may settle quicker than skin symptoms.

Itchy skin, ear issues and paw licking can take longer to improve, especially if there are other triggers involved.

If your dog’s symptoms are ongoing, speak to your vet rather than continuing to guess.

Best Novel Protein Treats for Dogs

The best novel protein treat depends on your dog’s previous diet, preferences and sensitivities.

Here are some of the most popular options for dogs who need something a little different.

Rabbit

Rabbit is often a good choice for dogs who have eaten lots of chicken, beef or lamb.

It is a lean protein and is commonly used for dogs with sensitive stomachs or suspected food sensitivities.

Rabbit ears, rabbit skin and other single-protein rabbit treats can also be useful because they are simple and easy to track

Browse our rabbit dog treats if your dog needs a gentle, less common protein.

Venison

Venison is another popular novel protein for dogs.

It is rich, tasty and often appealing to fussy dogs, while still being less commonly used than chicken or beef.

Venison treats can be a good option for dogs who need something high-value but still simple.

Browse our venison dog treats for natural options suitable for sensitive dogs.

Goat

Goat is less common in many UK dog diets, which makes it a useful option for dogs who have already tried more familiar proteins.

It can work well for dogs who need a single-protein chew or treat that is different from the usual chicken, beef or lamb.

Browse our goat dog treats if your dog needs a less common protein source.

Kangaroo

Kangaroo is one of the rarer proteins used in dog treats, so it may be suitable for dogs who have reacted to several more common meats.

It is often lean and can be a good option for dogs needing something different.

Because it is less common, it can be especially useful when owners are trying to avoid the proteins their dog has already eaten.

Browse our kangaroo dog treats for a more unusual protein option.

Ostrich

Ostrich is another excellent option for dogs who need a protein outside the usual choices.

It is often used in natural chews and treats for dogs with sensitivities because it is less commonly found in everyday dog food.

Ostrich can also be a good option for dogs who enjoy chewing, as many ostrich treats offer longer-lasting enrichment.

Browse our ostrich dog treats for natural novel protein chews.

Buffalo

Buffalo is less common than beef and can be a useful alternative for some dogs.

It is often found in natural chews, including longer-lasting options that help keep dogs occupied.

However, if your dog is sensitive to beef, introduce buffalo carefully and speak to your vet if you are unsure, as some dogs may react to similar proteins.

Browse our buffalo dog treats for natural chews and high-protein options.

Are Novel Proteins Right for Every Dog?

Not every dog needs novel proteins.

If your dog is healthy, happy, has normal stools and no signs of food sensitivity, there may be no need to change what they’re eating.

Novel proteins are most useful for dogs who:

• Have suspected food sensitivities
• Have recurring digestive upset
• React to common proteins
• Need a simpler treat routine
• Are doing a vet-led elimination diet
• Need single-protein treats
• Have itchy skin or ear issues that may be food related

They are not automatically better than chicken, beef or lamb. They are simply different.

For some dogs, chicken is perfectly fine. For others, it causes problems. The goal is not to find the “best” protein for all dogs. The goal is to find the best protein for your dog.

Common Mistakes to Avoid

Choosing a Protein Your Dog Has Already Eaten

If your dog has eaten duck food for years, duck probably isn’t novel.

Always check your dog’s food and treat history before choosing.

Using Mixed-Protein Treats

A treat labelled as rabbit flavour may still contain chicken, beef or other animal derivatives.

Always read the ingredients list carefully.

Changing Too Much at Once

If you change food, treats, chews and supplements all at the same time, it becomes difficult to know what helped or what caused a reaction.

Keep things simple.

Forgetting About Chews and Extras

Treats, chews, leftovers and flavoured supplements all count.

If your dog is on a controlled diet, even one extra treat can interfere with the results.

Expecting Instant Results

Some dogs improve quickly, especially with digestive symptoms. Skin and ear symptoms can take longer.

If your dog is uncomfortable or symptoms continue, get veterinary advice.

Frequently Asked Questions

What is a novel protein for dogs?

A novel protein is a protein your dog has not eaten before. It could be rabbit, venison, goat, kangaroo, ostrich, buffalo or another protein that is new to your dog.

Is duck a novel protein?

Duck can be a novel protein if your dog has never eaten it before. However, duck is now quite common in dog food and treats, so it may not be novel for every dog.

Is lamb a novel protein?

Lamb used to be considered novel more often, but it is now common in many dog foods. It may only be novel if your dog has not eaten lamb before.

What is the best novel protein for dogs with allergies?

There is no single best option. The best novel protein is one your dog has not eaten before and can tolerate well. Rabbit, venison, goat, kangaroo and ostrich are popular choices for sensitive dogs.

Can puppies have novel protein treats?

Many puppies can have novel protein treats, but always choose age-appropriate treats and chews. Avoid very hard chews for young puppies unless they are suitable for their age and chewing ability.

Can I feed more than one novel protein?

Yes, but if your dog has suspected allergies or sensitivities, it is usually better to introduce one protein at a time. This makes it easier to spot what suits them.

Are novel proteins hypoallergenic?

Novel proteins can be used as part of a hypoallergenic approach, but they are not automatically hypoallergenic for every dog. A dog can react to any protein if they are sensitive to it.

How long does it take to know if a novel protein is working?

Digestive changes may be noticed within days or weeks, but skin and ear symptoms can take longer. If you are doing an elimination diet, follow your vet’s recommended timeframe.

Are novel protein treats good for sensitive stomachs?

They can be, especially when they are single protein, limited ingredient and free from artificial additives. However, introduce them slowly and monitor your dog’s response.

Final Thoughts

Novel proteins can be incredibly helpful for dogs with suspected food sensitivities, allergies or sensitive stomachs.

The most important thing to remember is that novel means new to your dog. It does not automatically mean rare, better or suitable for every dog.

For the best results, choose one simple protein, introduce it slowly, avoid mixed ingredients and pay attention to how your dog responds.

If your dog struggles with common proteins like chicken, beef or lamb, natural novel protein treats such as rabbit, venison, goat, kangaroo, ostrich or buffalo may give you a gentler, simpler option to try.

Looking for natural treats for sensitive dogs? Browse our hypoallergenic dog treats collection, including single-protein rabbit, venison, goat, kangaroo, ostrich and buffalo treats carefully selected for dogs who need something a little different.