Is Your Dog Suffering from Allergies? Here Are 6 Important Symptoms

Written by Josefine Bagger Sommerlund

Mar.28 - 2025 1:01 PM CET

Animals
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Foto: Shutterstock
Is your dog constantly scratching or acting down? It might be a sign of a food allergy.

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Food allergies in dogs are more common than many people think. They can be tricky to spot, but here are five clear signs you should watch for.

1. Itching and Skin Issues

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One of the most common symptoms of food allergies is persistent itching. This often appears as:

  • Red and irritated skin

  • Frequent scratching and licking

  • Hair loss or dandruff

2. Ear Problems

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Allergies often lead to ear-related issues, such as:

  • Repeated ear infections

  • Bad odor coming from the ears

  • Head shaking or scratching near the ears

3. Digestive Issues

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Food allergies can also cause digestive problems, including:

  • Diarrhea

  • Vomiting

  • Frequent bowel movements or bloating

4. Changes in the Nails

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In some cases, food allergies can affect your dog’s nails. Look out for:

  • Discoloration (e.g., darker or reddish tones)

  • Brittle nails that break easily

  • Inflammation around the nail bed

5. Excessive Paw Licking

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Another sign is if your dog constantly licks or bites its paws. This is often due to irritation caused by an allergic reaction.

6. Changes in Energy and Mood

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Food allergies can impact your dog’s overall well-being:

  • Fatigue or low energy

  • Irritability

  • Less interest in playing or interacting

When Should You Contact Your Vet?

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If you notice one or more of these symptoms, it’s a good idea to consult your veterinarian.

A proper diagnosis and tailored diet plan can greatly improve your dog’s quality of life.