Suspect something is off but cannot pin it down?
Use the five questions below to narrow it down. Each answer points to the right symptom hub — no more generic "Google my pet" spiral.
Most owners arriving here know something is not quite right — the dog is 'just a bit off', the cat is 'grooming differently', and the Google results are 50 different terrifying diseases. This page is a triage, not a diagnosis. The goal is to get you to the right symptom hub in 2 minutes instead of 2 hours.
Each of the five questions below maps to a specific hub. Pick the one that fits your pet best — or the one with the most frequent pattern if multiple apply. If more than two fit, your pet most likely has an established food allergy (multi-system reactions are the textbook presentation) and the Itching & Scratching or Digestive Issues hubs are good entry points regardless.
This page is also where to start if the symptoms are vague, intermittent, or something is just 'different' about your pet. Vague often becomes specific once you start tracking. The elimination diet guide is the diagnostic workhorse for the whole category and shows up at the bottom of this page as the default fallback.
Start with the free scanner — it takes a minute
Before any triage, it is worth knowing whether the current food contains common allergens. Scan a photo of the label and the results flag chicken, beef, dairy, wheat, soy, corn, egg, lamb, pork, and fish automatically. If anything flags, the answer to most of the questions below gets simpler.
Try free scanStart here: 6 guides that address not sure yet — start here
Dog Food Allergy Symptoms: Complete Identification Guide
Identify dog food allergy symptoms including chronic itching, ear infections, and digestive issues. The key difference between food and environmental allergies.
Dog Skin Allergies from Food: Complete Diagnostic Guide
Over 60% of dogs with food allergies show skin symptoms first. Learn to identify dermatological signs, navigate diagnostic testing, and find lasting relief.
Dog Elimination Diet: 85% Success Rate (8-12 Week Protocol)
The elimination diet is the gold standard for diagnosing dog food allergies — with 85% accuracy vs just 20-30% for blood tests. Follow this 8-12 week plan.
Seasonal vs Food Allergies in Dogs: How to Tell the Difference
Learn how to distinguish seasonal from food allergies in dogs. Covers timing patterns, symptom differences, diagnostic testing, and treatment approaches.
Dog Food Allergies + IBD: Dual-Condition Management Guide
Up to 60% of dogs with IBD also have food sensitivities. How to manage both conditions with the right diet, modified elimination protocols, and supplements.
Top Dog Allergy Supplements: Omega-3, Probiotics, Quercetin
Strategic supplementation can cut food allergy symptoms by up to 50%. An evidence-based guide to omega-3s, probiotics, quercetin, and proper dog dosing.
Frequently asked questions
1. Is your pet scratching, chewing paws, or getting hot spots?
Start with the Itching & Scratching hub. Skin-dominant symptoms are the single most common food allergy presentation — 15-30% of chronic canine itch is food-driven — and the diagnostic path is well-established. The hub walks through whether it is food or environmental, how to run an elimination diet correctly, and when steroids / Apoquel / Cytopoint make sense. If it is paws specifically, the Paw Licking hub is more tightly targeted.
2. Keeps getting ear infections?
Go to the Ear Infections hub. Recurring ear infections every 4-8 weeks is the most reliable single predictor of a food allergy in dogs — not environmental, not water, not 'just ear shape'. The hub covers the food link specifically, why antibiotics alone do not fix it, and what to try before the next course.
3. Vomiting, diarrhoea, or soft stools?
Start with Digestive Issues if it is chronic / recurring, or the Vomiting hub if vomiting is the dominant pattern. Chronic GI upset is a dietary cause ~30-40% of the time, higher if it is paired with any skin signs. If there is blood, bloat, or lethargy, see a vet today rather than working through this triage.
4. Dull coat, excessive shedding, or patches of thin hair?
The Shedding & Dull Coat hub is the right starting point. Coat changes have three main causes: nutrition (fastest to test with omega-3 + quality food), food allergy (driven by the itch-scratch cycle), or endocrine disease (thyroid, Cushing's — needs a vet). The hub walks through which pattern points where.
5. Scooting, or frequent anal gland expressions?
The Anal Gland Issues hub. Recurring gland problems are almost always a stool-consistency problem, and stool consistency is a diet problem. Fibre supplementation fixes many cases in 1-2 weeks; the rest usually respond to an elimination diet.
None of these fit — what then?
Two-week observation log. For 14 days, note when symptoms appear (time of day, after meals, after walks, season), what the pet ate that day (main food + any treats / table scraps), and a 1-5 severity score. Most 'vague' symptoms become specific when tracked. If after 14 days there is a consistent pattern (always after dinner, always mornings, always after the same treat), that is your answer. If there is no pattern and symptoms persist, run an 8-12 week elimination diet with a novel protein as the diagnostic workhorse — it resolves most cases even before a specific trigger is named.
How long should I wait before seeing a vet?
Rule of thumb: see a vet immediately for anything urgent (blood, bloat, lethargy, not eating 24+ hours, laboured breathing, sudden-onset swelling of face or throat). For non-urgent chronic issues — itch, intermittent GI, scooting, coat changes — two weeks of tracking plus a free Scanner check on the current food is reasonable before booking. When you do book, bring: the symptom log, a list of foods / treats from the last month, a photo of the current food's ingredient list, and the scan result if any allergens flagged. That prep cuts the vet visit by half and the follow-ups by more.
Other symptoms we cover
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