10 Best Dog Food for Allergies (July 2026) Expert Reviews

Watching your dog scratch endlessly, lick their paws raw, or deal with recurring ear infections is heartbreaking. I have been there with my own dog, trying food after food, hoping something would finally bring relief. If you are reading this, chances are you are on that same frustrating journey.

Finding the best dog food for allergies can feel overwhelming with so many brands claiming to be “hypoallergenic” or “sensitive stomach” formulas. The truth is, not all allergy foods work the same way. Some use hydrolyzed proteins broken down so small your dog’s immune system cannot recognize them as threats. Others rely on limited ingredients with novel proteins like duck or alligator that your dog has never eaten before.

Our team spent weeks comparing 10 of the most recommended allergy dog foods on the market. We looked at protein sources, ingredient quality, real customer results, veterinary recommendations, and overall value. Whether your dog has itchy skin, digestive issues, or both, this guide breaks down exactly which formula is worth your time and money.

Top 3 Picks for Best Dog Food for Allergies

Best Dog Food for Allergies in 2026

1. Hill’s Prescription Diet z/d – Hydrolyzed Protein Powerhouse

When my friend’s golden retriever started losing patches of fur and scratching until he bled, her vet recommended Hill’s Prescription Diet z/d. Within three weeks, the difference was remarkable. The hydrolyzed chicken protein in this formula is broken down into such small molecules that the dog’s immune system simply does not recognize it as a threat. That is what makes this food so effective for dogs with true food allergies.

This is not just a marketing claim. Hill’s has clinical data showing visible improvement in skin and coat within 30 days and firmer stools in just 3 days. The ActivBiome+ prebiotic fiber blend helps activate the gut microbiome quickly, which supports both digestion and immune function. For dogs with severe sensitivities, this is often the formula that works when nothing else has.

The catch is that you need a veterinary prescription to buy it. That means an initial vet visit, which adds to the cost. The 25-pound bag is also a significant upfront investment. But when you consider that many dog owners report spending months cycling through cheaper foods that do not work, Hill’s z/d often saves money in the long run by solving the problem the first time.

Over 1,600 reviewers give this a 4.7-star rating, and the consensus is clear. Dogs with chronic ear infections, paw chewing, hot spots, and digestive upset see real results. The most common review theme is “I wish I had tried this sooner.”

Best Suited For

This formula is ideal for dogs with diagnosed food allergies who have failed on over-the-counter limited ingredient diets. If your vet has confirmed food sensitivities through testing or an elimination trial, Hill’s z/d is one of the most reliable choices available. It works especially well for dogs with both skin and digestive symptoms.

Dogs with severe, chronic allergies that have not responded to multiple food changes will benefit most. The hydrolyzed protein technology is specifically designed for the toughest allergy cases.

Things to Consider

You cannot purchase this without a prescription from your veterinarian. If your dog has mild sensitivities rather than true allergies, there are less expensive over-the-counter options worth trying first. Some dogs may also need time to adjust to the flavor, though most seem to accept it readily.

The bag size is large at 25 pounds, so if you have a small dog, you will need proper storage to keep it fresh. Check with your vet about whether this is the right starting point or if an elimination diet trial should come first.

2. SquarePet Hydrolyzed Protein – No-Prescription Hydrolyzed Option

SquarePet fills a real gap in the market: a hydrolyzed protein dog food that does not require a veterinary prescription. For dog owners who cannot afford a vet visit right away or whose dogs have mild-to-moderate sensitivities, this formula offers a genuine middle ground. The hydrolyzed pork protein limits skin and gastrointestinal reactions the same way prescription formulas do, just without the gatekeeping.

What I appreciate about SquarePet is the transparency. It is a limited ingredient diet with a single carbohydrate source, enriched with Omega 3 and 6 fatty acids including DHA and EPA for skin and coat support. There are no chemical preservatives or fillers, and it is made in the USA. The veterinarian-formulated approach gives confidence that this is not just a marketing exercise.

The 4.4-pound bag size is something to consider carefully. For a medium or large dog, this will not last long, and the per-pound cost adds up. Several reviewers mention transitioning to a larger bag option or buying in multiples. That said, it is a reasonable size for testing whether your dog tolerates the formula before committing to a larger supply.

Customer feedback is generally positive with a 4.2-star rating from over 300 reviews. Most dogs with skin and digestive sensitivities show improvement within a few weeks. A small number of owners report initial digestive upset during the transition period, which is normal when switching any dog food but worth monitoring closely.

Best Suited For

SquarePet works well for dogs with mild to moderate food sensitivities whose owners want to try a hydrolyzed protein approach without the cost and hassle of obtaining a prescription. It is also a strong option for dogs who have done well on other limited ingredient diets but need something more targeted.

If you are between vet visits or your dog’s allergies are not severe enough to warrant a full prescription diet, this gives you access to hydrolyzed protein technology at a more accessible entry point.

Things to Consider

The small bag size means more frequent reordering and a higher per-pound cost compared to larger bags. Some dogs experience loose stools during the first week of transition, so introduce it gradually over 7 to 10 days. A few reviewers noted that dogs with ragweed sensitivities may react to certain ingredients in this formula.

This is not a replacement for veterinary care if your dog has severe or worsening symptoms. Use it as a stepping stone, and consult your vet if you do not see improvement within a month.

3. Royal Canin HP Hypoallergenic – Veterinary Gold Standard

Royal Canin HP Hypoallergenic is one of the most frequently recommended formulas by veterinarians for dogs with food allergies, and for good reason. The hydrolyzed soy protein uses low molecular weight peptides that slip right past the immune system’s detection. Our team has heard from countless dog owners whose pets finally found relief after switching to this formula.

What sets Royal Canin HP apart is its dual focus on dermatological and gastrointestinal health. The formula is enriched with EPA and DHA fatty acids that support the skin’s natural protective barrier while also helping regulate intestinal transit. This matters because food allergies often show up as both skin problems and digestive issues simultaneously.

The 7.7-pound bag is a moderate size that works for testing and for smaller dogs. Many reviewers mention that even picky eaters enjoy the taste, which is not always the case with hydrolyzed formulas. One reviewer shared that their dog’s chronic ear infections, which had persisted for over a year on other foods, cleared up completely within six weeks on Royal Canin HP.

With a 4.4-star rating from nearly 500 reviews, the feedback is consistently positive. The main complaints center around price and the fact that it is not Prime eligible, which means longer shipping times for some customers. But when your dog stops itching and their ears finally heal, those inconveniences feel minor.

Best Suited For

Royal Canin HP is an excellent choice for dogs with both skin and digestive manifestations of food allergies. If your dog suffers from chronic ear infections, hot spots, paw licking, and loose stools, this formula targets all of those issues simultaneously. It is also a strong option for dogs who have tried other hydrolyzed formulas without success.

Veterinary clinics often stock this specific formula, which speaks to its credibility among professionals.

Things to Consider

This is a veterinary-exclusive product, so you will need authorization from your vet to purchase it. It is also not available through Amazon Prime, so plan ahead for shipping times. The 7.7-pound bag may need frequent reordering for larger dogs, and the per-pound cost is higher than non-prescription alternatives.

If your dog has a soy sensitivity specifically, consult your vet about whether the hydrolyzed soy protein in this formula is appropriate. The hydrolyzation process does break down the proteins significantly, but it is worth confirming with a professional.

4. Purina Pro Plan HA Hydrolyzed – Vegetarian Hydrolyzed Formula

Purina Pro Plan HA takes a unique approach by offering a vegetarian hydrolyzed protein formula. This is a game-changer for dogs who are allergic to common meat proteins like chicken, beef, or even fish. The single hydrolyzed protein source combined with a single carbohydrate source makes this one of the most controlled allergy diets available.

I have talked to several dog owners whose pets could not tolerate any meat-based hydrolyzed formulas. For dogs with inflammatory bowel disease or multiple protein allergies, the vegetarian approach in Purina HA provides a genuine alternative. Reviewers consistently mention that even picky dogs enjoy the taste, which is impressive for a specialized formula.

The 25-pound bag offers good value for the amount of food you get. Customers report that it helps with weight gain in underweight dogs, which is common in dogs whose allergies have caused chronic digestive issues and poor nutrient absorption. The formula is highly digestible and contains antioxidants for immune support.

With a 4.5-star rating from 144 reviews, the feedback is positive but the review count is lower than some competitors. The main frustration owners mention is price fluctuation and the fact that it is not Prime eligible. Some reviewers noted significant price swings between orders.

Best Suited For

This formula shines for dogs with confirmed allergies to multiple meat proteins. If your dog reacts to chicken, beef, fish, and other common protein sources, the vegetarian approach eliminates that entire category of triggers. It is also well-suited for dogs with IBD or chronic digestive issues that have not responded to other formulas.

Dogs that need to gain weight after prolonged digestive problems may benefit from the palatable, nutrient-dense formulation.

Things to Consider

Like other hydrolyzed diets, this requires veterinary authorization. The price tends to fluctuate more than competing brands, so it is worth comparing prices from multiple retailers. It is not available through Prime, so factor in shipping time when reordering.

Some owners new to vegetarian dog food feel uncertain about the nutritional adequacy. Rest assured, Purina HA meets AAFCO standards for adult dog maintenance, but always discuss any dietary concerns with your veterinarian.

5. Natural Balance Salmon and Sweet Potato – Top Limited Ingredient Pick

Natural Balance Limited Ingredient Diet with Salmon and Sweet Potato is one of the most popular over-the-counter allergy foods, and it is easy to see why. With over 2,200 reviews and a 4.5-star rating, this formula has helped thousands of dogs find relief without needing a prescription. Salmon as the single animal protein source is perfect for dogs with chicken or beef allergies, which are the two most common canine food allergens.

The limited ingredient approach is straightforward: salmon for protein, sweet potatoes for grain-free carbohydrates, and flaxseed for coat health. There are no added grains, soy, gluten, or artificial colors. The “Feed with Confidence” program tests every single batch, which gives peace of mind about consistency and safety.

What impressed me most when researching this food is how many owners reported dramatic improvements in their dogs’ coats. Dogs that had dull, flaky fur from chronic allergies started shining within weeks. The Omega fatty acids from salmon and flaxseed make a visible difference in skin and coat health, even beyond the allergy relief itself.

The main concern from reviewers relates to quality control when buying through Amazon. Several owners noted differences in kibble size and appearance between orders, suggesting possible inconsistency in the supply chain. Buying directly from Natural Balance or a trusted pet store may avoid these issues.

Best Suited For

This is an ideal starting point for dogs with suspected food allergies, especially poultry allergies. If you want to try an over-the-counter limited ingredient diet before investing in a veterinary prescription formula, Natural Balance Salmon and Sweet Potato is one of the best options available. It is also great for dogs with grain sensitivities.

Dogs with itchy skin, paw licking, or mild digestive upset may see significant improvement on this simple, clean formula without needing to go the prescription route.

Things to Consider

If you buy through Amazon, inspect the food when it arrives. Some reviewers have reported receiving bags with different kibble sizes or quality than expected. This does not appear to be a formula problem but rather a sourcing or storage issue. The food is grain-free, so discuss with your vet whether a grain-free diet is appropriate for your dog given the FDA investigation into grain-free foods and heart health.

While this works well for many dogs with mild to moderate allergies, dogs with severe sensitivities may ultimately need a hydrolyzed protein formula.

6. Natural Balance Lamb and Brown Rice – Healthy Grains Limited Ingredient

Not every dog needs or should be on a grain-free diet, and Natural Balance Lamb and Brown Rice is proof that you can have a limited ingredient formula with healthy grains. Lamb provides a novel protein for dogs who cannot tolerate chicken or beef, while brown rice offers a gentle, fiber-rich carbohydrate source that supports healthy digestion.

The 4.6-star rating from over 870 reviews is impressive and higher than many competitors in this space. What stands out in the reviews is how many owners specifically mention this food working for dogs that failed on other limited ingredient brands. The simplified ingredient list with no soy, gluten, or artificial colors and flavors makes it easier to identify exactly what your dog is reacting to if problems persist.

I spoke with a dog owner whose French Bulldog had been on four different allergy foods before finding success with this lamb and brown rice formula. The brown rice provides fiber that helps regulate digestion, which is something grain-free formulas sometimes lack. For dogs with both skin and stomach sensitivities, this combination can be particularly effective.

The main complaint is about price increases over time. Several long-time customers mention that the cost has crept up steadily, and the 12-pound bag feels small relative to the price. If you have a larger dog, this can become expensive quickly.

Best Suited For

This formula is an excellent match for dogs that do well with grains but need a limited ingredient diet with a novel protein. If your dog has chicken or beef allergies but tolerates carbohydrates well, lamb and brown rice provides a balanced, gentle option. It is also a good choice for dogs that experienced digestive issues on grain-free formulas.

Small to medium dogs will benefit most from the 12-pound bag size, though larger dogs can still use it with more frequent reordering.

Things to Consider

The 12-pound bag is the only size available, which makes it less cost-effective for large dogs. The price has been increasing over time, according to multiple reviewers. Some dogs may also develop sensitivities to lamb over time if it is their sole protein source for extended periods.

If your dog has a true lamb allergy, this obviously is not the right choice. But for dogs allergic to poultry and beef, lamb provides a well-established alternative protein that is easy to digest.

7. Blue Buffalo Basics Turkey – Grain-Free Skin and Stomach Care

Blue Buffalo Basics Turkey is one of the highest-rated limited ingredient dog foods available, with a 4.7-star rating from over 2,000 reviews. Turkey serves as the single animal protein source, which is ideal for dogs with chicken allergies since turkey and chicken are different enough that many dogs tolerate one but not the other. The formula includes Omega 3 and 6 fatty acids specifically for skin and coat health.

What makes this food stand out is the inclusion of Blue Buffalo’s exclusive LifeSource Bits, which are antioxidant-rich pieces that support immune system health. For allergy dogs, immune support matters because a well-functioning immune system is less likely to overreact to benign proteins. The formula contains no chicken by-product meals, corn, wheat, or soy.

My neighbor switched her pit bull to this formula after months of ear infections and paw biting. Within four weeks, the ear infections stopped and the paw chewing decreased significantly. She told me the only downside was some extra flatulence in the first couple of weeks, which resolved on its own as the dog adjusted to the new food.

At 24 pounds, this bag offers solid value for a premium limited ingredient formula. The fact that it is Prime eligible means fast shipping, which matters when you are transitioning foods and running low on your current supply. For dogs that need a non-prescription option with strong skin and stomach support, Blue Buffalo Basics Turkey consistently ranks among the top choices.

Best Suited For

Blue Buffalo Basics Turkey is perfect for dogs with chicken allergies who need a limited ingredient formula without going the prescription route. It is also well-suited for dogs with both skin and digestive symptoms, since the formula addresses both with Omega fatty acids and gentle, easily digestible ingredients.

If you want a widely available, highly rated food that you can order on Prime and try immediately, this is one of the strongest over-the-counter options.

Things to Consider

Some dogs may experience increased flatulence during the first two weeks of transition. This is common with turkey-based formulas and typically resolves on its own. A small number of dogs with severe poultry allergies may also react to turkey, so monitor closely during the first month.

While this is an excellent limited ingredient option, dogs with severe or complex allergies may still need a hydrolyzed protein formula. Use this as a first or second step in your allergy management approach before moving to prescription diets.

8. Wellness Simple Salmon and Potato – Natural Limited Ingredient Formula

Wellness Simple Salmon and Potato takes a clean, straightforward approach to allergy management. Salmon provides the single protein source, potatoes deliver easily digestible carbohydrates, and natural prebiotics support digestive health. There are no corn, wheat, soy, poultry by-products, dairy, eggs, artificial colors, or preservatives. The ingredient list is refreshingly simple.

What I like about Wellness Simple is that it bridges the gap between basic limited ingredient diets and prescription hydrolyzed formulas. It gives you the limited ingredient approach without the prescription requirement, but with higher quality ingredients and more careful formulation than many budget options. The Omega fatty acids from salmon support skin and coat health, while taurine supports heart health.

With nearly 1,400 reviews and a 4.6-star rating, the real-world results speak for themselves. Owners of dogs with multiple allergies consistently report that this formula works when others have failed. The chicken-free recipe is specifically designed for dogs with poultry sensitivities, which is one of the most common allergy categories.

A few practical notes: the fish smell is stronger than some other salmon-based foods, which bothers some owners more than their dogs. And while most Amazon orders arrive without issue, some customers have reported shipping problems including damaged bags or delayed delivery. These seem to be logistics issues rather than product quality issues.

Best Suited For

Wellness Simple is an excellent choice for dogs with poultry allergies who need a reliable, non-prescription formula. It is also ideal for dogs with multiple food sensitivities because of the extremely limited ingredient list. If your dog reacts to several common allergens and you want to start with an over-the-counter option, this gives you the cleanest possible starting point.

Dogs with both skin irritation and digestive sensitivity will benefit from the dual support of Omega fatty acids and natural prebiotics.

Things to Consider

The fish smell is noticeably stronger than other brands. If you are sensitive to odors or store food indoors, this is worth knowing upfront. The food is made in the USA using globally sourced ingredients, which some owners prefer. A few reviewers noted recent price increases, so compare current pricing against similar options.

As with any salmon-based food, dogs with fish allergies should obviously avoid this formula. Monitor your dog closely during the first few weeks and note any changes in itching, digestion, or energy levels.

9. Blue Buffalo NP Novel Protein Alligator – Novel Protein for Severe Allergies

Sometimes a dog has eaten chicken, beef, fish, lamb, turkey, and even duck, and still has allergic reactions to all of them. That is where novel proteins like alligator come in. Blue Buffalo NP uses real deboned alligator as the primary ingredient, a protein source that almost no dogs have ever encountered in their diet. This makes immune reactions extremely unlikely.

This is a veterinary-prescribed formula designed specifically for dogs with food intolerances that have not responded to other approaches. The alligator protein is combined with vitamins and minerals for complete nutrition, with no chicken by-product meals, corn, wheat, or soy. Reviewers note that it is surprisingly less smelly than many other specialty foods, which is a welcome change.

The 4.5-star rating from 35 reviews is solid, though the low review count reflects the niche nature of this product. Most dogs that end up on this formula have been through the wringer with multiple other foods. Owners report that even dogs that had given up on eating show renewed interest in mealtime with the alligator formula.

Best Suited For

This formula is for dogs with severe, documented food allergies to multiple common and novel protein sources. If your dog has tried chicken, beef, lamb, fish, and even duck-based foods without success, alligator provides one of the few remaining novel protein options. It is a last-resort option before considering home-prepared diets under veterinary supervision.

Dogs with complex allergy profiles that have been confirmed through veterinary testing are the primary candidates for this formula.

Things to Consider

The 6-pound bag combined with the premium price makes this one of the most expensive per-pound options on the market. It is a veterinary-prescribed formula, so you will need your vet’s authorization. Availability can be limited, and some retailers have inconsistent stock. The small bag size means frequent reordering for medium and large dogs.

Because this is truly a specialty product, discuss with your vet whether a hydrolyzed protein formula might be more appropriate before trying a novel protein approach. Hydrolyzed diets often work for dogs that cannot tolerate any intact proteins, regardless of the source.

10. FirstMate Duck and Pumpkin – Grain and Pea Free Novel Protein

FirstMate Duck and Pumpkin is one of the most thoughtfully formulated limited ingredient foods I have come across. The cage-free duck meal is sourced from France and provides approximately 78% of the total protein. The remaining 22% comes from pumpkin and potato, which also support gut health and digestion. This is a grain-free and pea-free formula, which matters because peas are increasingly recognized as a potential allergen for some dogs.

What makes FirstMate stand out is the attention to protein sourcing. Duck is a novel protein for most dogs, meaning their immune systems have never been exposed to it and are unlikely to mount an allergic response. The pumpkin-based nutrition provides prebiotic fiber that feeds beneficial gut bacteria, supporting the microbiome that plays a crucial role in immune regulation.

The 25-pound bag offers good value for a premium, novel protein formula. It is suitable for all life stages, which is convenient for multi-dog households where different ages of dogs may have different allergy needs. The formula is manufactured in Canadian facilities with strict quality control, and FirstMate is a family-owned company that takes sourcing seriously.

With a 4.5-star rating from over 100 reviews, the feedback is strong. Owners of dogs with bladder issues also report improvements, which may be related to the clean ingredient profile. A few reviewers mention that some dogs initially refused the food, but most came around within a few days when mixed with their previous food during transition.

Best Suited For

FirstMate Duck and Pumpkin is ideal for dogs with allergies to common proteins like chicken, beef, or fish, as well as dogs that react to grains and peas. The duck provides a truly novel protein option, and the pumpkin supports digestion in dogs with sensitive stomachs. It is also a strong choice for households with dogs of different ages since it is formulated for all life stages.

If your dog has not responded to salmon or turkey-based limited ingredient diets, duck is a logical next step before moving to hydrolyzed or prescription formulas.

Things to Consider

The kibble size has been reported to vary between batches, which may be an issue for small dogs or dogs with dental problems. Some dogs are initially hesitant about the duck flavor, so plan a gradual transition over 10 to 14 days. The packaging does not have an easy-open or resealable closure, so you will need a separate storage container.

While duck is a novel protein for most dogs, it is becoming more common in pet foods. If your dog has eaten duck-based treats or foods before, this may not provide the novelty needed to avoid an immune response.

How to Choose the Right Dog Food for Allergies

Picking the right allergy food for your dog is not as simple as grabbing the highest-rated bag on the shelf. The best approach depends on what your dog is actually allergic to, how severe the symptoms are, and whether you are working with a veterinarian. Here is what I have learned from researching this topic extensively and talking with dog owners who have been through the process.

Know the Difference: Food Allergies vs Environmental Allergies

This is the single most important thing to understand before switching foods. Food allergies and environmental allergies cause similar symptoms: itchy skin, ear infections, paw licking, and digestive upset. But they require completely different treatments. If your dog is reacting to pollen, dust mites, or grass, changing their food will not solve the problem.

The best way to distinguish between the two is an elimination diet trial supervised by your veterinarian. During this trial, your dog eats a single novel protein and carbohydrate source for 8 to 12 weeks with absolutely no treats, table scraps, or flavored medications. If symptoms improve, you gradually reintroduce ingredients to identify the specific trigger.

Types of Allergy Diets Explained

There are three main categories of allergy-friendly dog foods, and understanding the differences helps you choose the right one:

Hydrolyzed Protein Diets: These are the gold standard for diagnosed food allergies. The protein molecules are broken down so small that the immune system cannot recognize them. Hill’s z/d, Royal Canin HP, and Purina HA are all examples. Most require a veterinary prescription.

Limited Ingredient Diets (LID): These formulas use a single protein source and a single carbohydrate source with minimal additional ingredients. Natural Balance, Blue Buffalo Basics, and Wellness Simple fall into this category. They are available over-the-counter and work well for mild to moderate sensitivities.

Novel Protein Diets: These use protein sources your dog has never eaten before, like duck, venison, rabbit, or alligator. FirstMate Duck and Blue Buffalo NP Alligator are examples. The idea is that the immune system has not developed antibodies against these new proteins, so no allergic reaction occurs.

Key Ingredients to Avoid

The most common canine food allergens are chicken, beef, dairy, wheat, and soy. If you suspect food allergies, start by eliminating these from your dog’s diet. Many allergy formulas are specifically designed to exclude these ingredients. Read labels carefully, because chicken fat and chicken flavoring can show up in foods that claim to use other primary proteins.

Also watch for hidden allergens in treats, dental chews, and supplements. A strict elimination diet means no exceptions. Even a single chicken-flavored heartworm pill can trigger a reaction and invalidate weeks of progress.

Give It Time

One of the biggest mistakes dog owners make is switching foods too quickly. When you start a new allergy diet, expect to wait 8 to 12 weeks before seeing full results. Skin takes time to heal, and the immune system needs time to calm down. Most owners start seeing subtle improvements within 2 to 4 weeks, but the full effect takes longer.

During the transition, mix the new food with the old food gradually over 7 to 10 days. Start with 75% old food and 25% new food, then slowly shift the ratio. Abrupt changes can cause digestive upset that masks whether the new food is actually working.

When to See a Vet

If your dog’s symptoms are severe, worsening, or accompanied by weight loss, lethargy, or secondary skin infections, see your veterinarian before making any dietary changes. Chronic ear infections, open sores, and hair loss warrant professional evaluation. Your vet can perform allergy testing, prescribe medications for symptom relief, and recommend the most appropriate dietary approach for your dog’s specific situation.

FAQs

Finding the Right Allergy Food for Your Dog

Dealing with dog food allergies takes patience, but the right formula can transform your dog’s quality of life. For severe, diagnosed food allergies, Hill’s Prescription Diet z/d remains the most clinically proven option available. For mild to moderate sensitivities, Natural Balance Salmon and Sweet Potato and Blue Buffalo Basics Turkey offer excellent over-the-counter solutions that work for thousands of dogs.

The key is matching the food to your dog’s specific needs. Hydrolyzed protein formulas for true allergies, limited ingredient diets for sensitivities, and novel proteins when common proteins have been exhausted. Start with an over-the-counter limited ingredient option if symptoms are mild, and work with your vet on a proper elimination diet trial if problems persist. Your dog deserves to stop itching, and with the right food, that relief is absolutely within reach in 2026.