7 Signs Your Dog Has a Food Allergy – And How to Fix It

Did you know that 10-15% of all allergies in dogs are food-related?

But when we say "allergy," we don’t mean a dramatic anaphylactic reaction like in humans. Instead, many dogs experience digestive distress, chronic inflammation, and skin irritation from foods they struggle to digest. Over time, the continued intake of problem foods can lead to:

• Itching
• Ear infections
• Stomach upset

Signaling an intolerance or sensitivity rather than an immediate allergic response.

Lenny, our beloved golden retriever, struggled with runny stools, watery eyes, a thinning coat, and itchy skin for months as a pup before we finally uncovered the culprit—he was allergic to chicken (can you believe it!). Once we switched him to a natural, grain-free diet, the transformation was incredible. If your dog is showing similar signs, here’s what to look for and how you can help.

7 Signs Your Dog Has a Food Allergy

1️. Itchy Skin & Excessive Scratching

If your dog is constantly licking, biting, or scratching, especially around their paws, ears, or belly, it could be a sign of food allergies triggering inflammation and irritation.

2️. Chronic Ear Infections

Frequent ear infections, particularly those that are yeasty or smelly, are a major red flag for food sensitivities.

3️. Digestive Issues (Diarrhea & Vomiting)

Unexplained loose stools, bloating, excessive gas, or vomiting may indicate your dog isn’t tolerating certain proteins well.

4️. Red, Inflamed Skin or Rashes

Skin reactions, including hot spots and persistent rashes, often point to an underlying food sensitivity. If left untreated, excessive scratching can lead to infections.

5️. Constant Paw Licking

Dogs instinctively lick their paws to soothe inflammation caused by food intolerances. If your dog is obsessively licking their paws, it’s time to take a closer look at their diet.

6️. Chronic Anal Gland Issues

Frequent scooting or needing anal glands expressed often can be a sign of poor digestion, often linked to food sensitivities.

7. Hair Loss & Dull Coat

A healthy dog should have a thick, shiny coat. If your dog’s fur is dry, brittle, or falling out in patches, their diet may not be agreeing with them.

How to Fix Food Allergies in Dogs

1. Switch to a Limited Ingredient Diet

A limited ingredient diet (LID) helps pinpoint allergens by keeping food simple and easy to digest. Choose treats and food with only one protein source (like kangaroo or fish) and a single carbohydrate (like sweet potato).

2. Remove Common Allergens

Some ingredients are more likely to cause sensitivities than others. The most common food allergens for dogs include:

• Chicken
• Beef
• Dairy
• Wheat
• Soy

Try eliminating these one by one to see if symptoms improve.

3. Choose Natural, Single-Ingredient Treats

Many commercial treats contain fillers, artificial additives, and preservatives that can trigger allergies. Stick to 100% natural treats with no grains or unnecessary ingredients.

4. Introduce a Novel Protein

Dogs frequently exposed to the same proteins may develop sensitivities over time. Switching to a novel protein like kangaroo or fish can eliminate allergic reactions.

5. Support Gut Health

A strong gut helps combat allergies. Adding probiotics and Omega-3-rich treats (like fish-based chews) can improve digestion, reduce inflammation, and strengthen immune function.

6. Work with Your Vet

If symptoms persist, consult your vet or a pet nutritionist for an elimination diet plan or allergy testing.

Looking for Allergy-Friendly Treats?

At Lenny’s Pup Shop, we know the struggle of finding safe, nutritious treats for sensitive dogs. That’s why we offer:

✔ 100% natural, single-ingredient treats (like kangaroo & fish)
✔ No fillers, no preservatives, no grains
✔ Slowly dehydrated to retain nutrients
✔ Perfect for dogs with allergies or sensitive stomachs

If your pup suffers from food allergies, give them treats that are natural, healthy, and allergy-friendly. Because every dog deserves the best. 💙