Common allergens include:

• Flea saliva (one of the most common causes of allergic reactions)

• Pollen, mold, or dust mites

• Certain foods (commonly chicken, beef, dairy, or fish)

• Household chemicals or fragrances

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Sensitivities in Cats

What they are:
A sensitivity (sometimes called an intolerance) is not an immune system issue. Instead, it’s the body having trouble processing a substance. For example, many cats are sensitive to lactose because they lack the enzyme to digest it properly.

Common signs of sensitivities in cats:

• Gas, bloating, or stomach discomfort

• Soft stool or diarrhea

• Occasional vomiting

• Less often: mild itching or coat changes

Unlike allergies, sensitivities are dose-dependent—meaning the more your cat consumes or is exposed to the trigger, the worse the symptoms get.

Holistic Ways to Help Your Cat

If your cat struggles with allergies or sensitivities, holistic care can make a big difference. Always consult with your veterinarian before making big changes, especially if your cat has existing health conditions.

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1. Support the Immune System

• Omega-3 fatty acids (from fish oil or algae) help reduce inflammation and support skin health.

• Probiotics can balance gut health, which plays a role in immune regulation.

• Antioxidant-rich foods or supplements (like vitamins C and E) may support resilience.

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2. Soothe the Skin Naturally

• Oatmeal or aloe-based sprays can calm itchiness (ensure they’re pet-safe and fragrance-free).

• Coconut oil, used sparingly, may help moisturize dry or irritated areas.

• Herbal rinses with chamomile or calendula can soothe inflamed skin.

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How to Tell the Difference

The overlap between allergies and sensitivities can make it tricky to tell which one your cat has. Here are a few ways to help narrow it down:

1. Track the timing – Allergies often appear quickly after exposure, while sensitivities may build gradually.

2. Look at the symptoms – Itching, skin issues, or respiratory problems lean toward allergies; digestive upset points more toward sensitivity.

3. Rule out fleas first – Flea allergy dermatitis is the #1 cause of itching in cats, even if you never see fleas.

4. Try an elimination trial – For food-related issues, a limited-ingredient or novel protein diet can help you identify the culprit.

3. Improve the Environment

• Use unscented, natural cleaners and avoid air fresheners or scented litter.

• Vacuum and wash bedding regularly to reduce dust mites and allergens.

• Consider an air purifier if pollen or dust is an issue.

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4. Manage the Diet Carefully

• For food allergies, try a limited-ingredient or hydrolyzed protein diet under veterinary guidance.

• For sensitivities, avoid known trigger ingredients and stick to high-quality, digestible foods.

• Introduce new foods slowly and track any changes.

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5. Reduce Stress
Stress can make allergic or sensitive cats flare up more. Provide enrichment, safe hiding spaces, and calming remedies like pheromone diffusers or gentle herbal supplements (valerian, chamomile, or cat-safe calming blends).

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Final Thoughts

Allergies and sensitivities in cats may share some similarities, but the root causes—and best ways to help—are different. By paying close attention to your cat’s symptoms and making thoughtful holistic adjustments to their environment, diet, and wellness routine, you can give them relief and help them live more comfortably.

When in doubt, always partner with a trusted veterinarian who can rule out serious conditions and guide you in creating a care plan that’s safe and effective for your cat.