Our About page covers what this site is and who runs it. This page is the method: exactly how a verdict is sourced, decided and worded, and the rules we hold ourselves to. Every food page links here.
A verdict is transcribed from a published veterinary source and cited on the page it appears on. We do not infer verdicts and we do not write them from general knowledge. When sources differ, the higher one wins:
Each record stores the source, the date we last reviewed it, and a confidence rating that is shown on the page. Of 140 foods, 88 are high confidence and 52 medium. We would rather tell you the evidence is thinner than present everything with equal certainty.
This is the rule we are strictest about. A finding established in one species is not evidence about the other. Macadamia nuts, hops and star fruit are documented in dogs with no established finding in cats. We do not extrapolate: those three foods have no cat page at all, and the checker answers "we don't have a sourced answer for cats — ask your vet" rather than guessing.
The same restraint applies inside a verdict. Grape toxicity is documented in dogs and not established in cats, and our cat page says exactly that instead of borrowing the dog finding. Where the ASPCA attributes a risk mainly to other animals — avocado's persin, which it associates with birds and ruminants — we say so rather than inflating it into a dog toxin.
A food missing from this site is not a food we have cleared. It means we have no citable source, and the answer is your vet.
This is a reference, not veterinary advice and not a diagnosis. Toxicity guidance changes as findings are published, and animals differ in size, age, breed and health, so a quantity that is harmless to one may not be to another. Where this site and your vet disagree, your vet is right.
If your pet may have eaten something harmful, call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 now — don't wait for symptoms, and don't wait on a web page. A consultation fee may apply to that hotline.
If a verdict here contradicts a veterinary source, we want to know. Send the page and the source to our contact address; we check it, correct the record, and update the reviewed date shown on the page. A correction that changes a verdict is made the same day we can verify it. We would rather be corrected than be wrong.