Signs Your Dog May Need a Grain-Free or Gluten-Free Diet

1. Chronic Itching and Skin Irritations

One of the most common signs of food intolerance is persistent itching. If your dog is constantly scratching, licking their paws, or has red, inflamed skin, it could be due to a grain or gluten sensitivity. Rashes, hives, and even ear infections are also common reactions.

What to Watch:

• Bald spots or excessive shedding

• Redness around paws, ears, or belly

• Frequent licking or chewing

2. Recurring Digestive Issues

Frequent diarrhea, vomiting, bloating, or gas could be your dog’s way of telling you something is wrong. Some dogs have trouble digesting grains or gluten, which can lead to stomach upset and poor nutrient absorption.

What to Watch:

• Loose stools or inconsistent bowel movements

• Excessive gas

• Signs of discomfort after eating

3. Behavioral Changes and Lethargy

If your playful pup suddenly becomes moody, less active, or uninterested in their usual activities, this may be due to an underlying food sensitivity. Digestive distress or discomfort can impact your dog’s overall mood and energy levels.

What to Watch:

• Fatigue even after resting

• Sudden disinterest in playing or walking

• Anxiety or irritability after meals

4. Poor Coat Quality and Dull Fur

A shiny, healthy coat is a sign of good nutrition. But when dogs are sensitive to ingredients like wheat, corn, or gluten, it often reflects in their fur. If your dog’s coat becomes dry, flaky, or dull despite regular grooming, it might be time to reevaluate their diet.

What to Watch:

• Dry, brittle fur

• Dandruff or flaky skin

• Excessive shedding

5. Chronic Ear Infections

Frequent ear infections — especially those that keep coming back — can be linked to food intolerances, including grains and gluten. Dogs with long or floppy ears are especially prone, and it’s often one of the first signs of an issue.

What to Watch:

• Foul odor from the ears

• Frequent head shaking or ear scratching

• Discharge or redness in the ear canal

Should You Go Grain-Free or Gluten-Free?

Not all dogs need a grain-free or gluten-free diet, and some grains (like brown rice or oats) can be nutritious. However, if your dog shows any of the signs above, it’s worth consulting your veterinarian or a pet nutritionist.

They may recommend:

• An elimination diet to identify triggers

• Grain-free kibble or raw food options

• Hypoallergenic or single-protein formulas

Final Thoughts

Your dog’s health begins with what goes into their bowl. While grain and gluten aren’t harmful to every dog, some pups do much better without them. Watch for these subtle signs, and don’t be afraid to experiment (under vet guidance) with grain-free alternatives to find what works best for your best friend.

Remember: Every dog is different. What matters most is finding a diet that keeps your pup happy, healthy, and full of tail wags.

Want to know the best grain-free food for your dog's breed and age?
Visit our expert guide at Shom Pet Care or talk to one of our certified pet nutritionists today.