Dog Food Allergen Checker
Start with the ingredient you suspect. The checker gives you a focused answer, then scans the rest of the label for other recognised food trigger sources and wording that hides what is actually inside.
This checks the label, not the dog. It can help you spot useful leads and prepare better questions. It cannot tell you which ingredient is causing symptoms or make a diagnosis.
Copy it from the pack or product page, including brackets, oils and percentages.
Checked in your browser. The ingredient list is not sent or stored.
“You make dog food. Doesn't your own stuff conveniently pass?”
It does, and you should know why before you trust the result: insect protein is a novel protein, so our recipes genuinely do not contain beef, dairy, chicken or wheat. That is the product, not the scoring. The checker has no idea which brand a label belongs to, ours included: it reads the words in the box and nothing else. It gives no score, no ranking and no verdict on whether a food is good, because an ingredient list cannot tell you that. Paste our label in and you will get the same plain read as anyone else's.
The most commonly reported food triggers in dogs
The checker ranks its results using a pooled review of confirmed canine food reactions: 297 dogs across multiple studies (Mueller, Olivry & Prélaud, 2016). The percentages below are the share of those confirmed cases in which each food was implicated. Dogs can react to more than one food, so the figures overlap. The review itself is clear that this cannot estimate how common food reactions are in the wider dog population, and the ranking partly reflects which foods dogs are most often fed in the first place.
| Food | Share of 297 confirmed cases |
|---|---|
| Beef | 34% |
| Dairy | 17% |
| Chicken | 15% |
| Wheat | 13% |
| Soya | 6% |
| Lamb | 5% |
| Egg | 4% |
| Fish | 2% |
| Pork | 2% |
| Rice | 2% |
Maize (corn) and other ingredients are reported less commonly and are flagged by the checker without a ranking.
Common questions
Is this checker a diagnosis?
No. It reads the label, nothing more. Blood, saliva and hair tests are not reliable for diagnosing food allergies either. The dependable method is a structured elimination diet run for at least 8 weeks, followed by a controlled re-introduction of the suspect food with your vet: it is the reaction returning on re-challenge that confirms the trigger. Use the checker to screen foods quickly, and the elimination process to actually confirm.
If my dog's allergen is not listed, is the food safe?
Not guaranteed. Audits of commercial pet foods have found ingredients present that were not declared on the label, and declared ingredients that were missing. A clean label is a good sign, not a promise. Watch for vague terms like 'meat and animal derivatives', which can legally hide the exact species your dog reacts to.
Which food triggers are most commonly reported in dogs?
In a pooled review of 297 dogs with confirmed food reactions, the most commonly implicated foods were beef (34%), dairy (17%), chicken (15%) and wheat (13%), followed by soya, lamb and egg. Fish, pork and rice each accounted for around 2% of cases. These are shares of reported cases, not the risk for any individual dog, and they partly reflect which foods dogs are most often fed.
What if food is not the only possible explanation?
One label cannot account for everything a dog eats or everything that can cause similar signs. Treats, chews, scraps and flavoured medicines or supplements can introduce other ingredients. Pollen, mites, fleas, and skin or ear infections can also create a similar picture and may coexist with a food reaction. The checker cannot diagnose between them; ask your vet what else should be ruled out.
Methodology and sources
Trigger frequencies: Mueller, Olivry & Prélaud (2016), “Critically appraised topic on adverse food reactions of companion animals (2): common food allergen sources in dogs and cats”, BMC Veterinary Research, doi:10.1186/s12917-016-0633-8 (shares of a pooled case series; the review cannot estimate population prevalence). Label accuracy: Olivry & Mueller (2018), “(5): discrepancies between ingredients and labeling in commercial pet foods”, BMC Veterinary Research, doi:10.1186/s12917-018-1346-y. Cross-reactivity between related proteins: Bexley et al. (2017), Veterinary Dermatology, doi:10.1111/vde.12335. This tool reads ingredient lists; it does not diagnose. If your dog has ongoing symptoms, work with your vet, and see our elimination diet guide for the reliable confirmation method, then use the free eight-week planner to turn the vet-agreed food and start date into a household calendar. One rule matters above all during a diagnostic trial: do not add any treats or extras, ours included, unless your vet has explicitly built them into the plan. Some Grub makes single-protein insect treats for dogs with sensitivities to common proteins, which is why we built this tool.