Toxic Food Calculator: What’s Safe for Dogs to Eat?

Half the confusion about feeding dogs “human food” isn’t about whether it’s a good idea generally. It’s not knowing which specific items are actually dangerous versus just unnecessary.

Search the tool below for a food, or browse by category, and you’ll get a straight answer: safe, caution, or genuinely toxic.

Food Safety Tool

Toxic Food Calculator

Search or browse common foods to see what’s safe, what needs caution, and what’s genuinely toxic for dogs.

All Safe Caution Toxic

No matching food found. If you’re not sure about something your dog ate, contact your vet directly rather than guessing.

My dog just ate something toxic. What do I do?

Contact your vet or the nearest emergency vet immediately, even outside normal hours, rather than waiting to see if symptoms appear. If you can, note what was eaten, roughly how much, and when. Don’t try to make your dog vomit unless a vet specifically tells you to, since it isn’t safe for every substance.

This list covers commonly asked-about foods and is for general guidance only, not a complete list or a substitute for veterinary advice. Amounts, individual dogs, and underlying health conditions all affect risk, so when in doubt, contact your vet.

Why the same food affects dogs differently to us

Dogs process a number of everyday ingredients very differently to humans.

Onions and garlic, for instance, are staples in most human kitchens. In a dog, the same compounds that make them taste good to us damage red blood cells.

Grapes are another one that catches people out, because the reaction isn’t dose-dependent in any predictable way. Some dogs have eaten a handful with no issue. Others have gone into kidney failure from a few.

“Caution” foods aren’t a green light

The caution category exists because a lot of foods aren’t a simple yes or no.

Peanut butter is the clearest example. It’s a genuinely useful training treat, right up until it’s made with xylitol instead of sugar, at which point the exact same jar becomes an emergency.

Checking labels on anything processed, even something that seems harmless, is worth doing every time rather than assuming last month’s brand is still safe.

Recognising a problem before it’s obvious

Symptoms of food poisoning in dogs don’t always show up right away, and they don’t always look dramatic at first.

Vomiting, diarrhoea, lethargy, and a lack of appetite are the most common early signs, but tremors, an unsteady walk, or a rapid heart rate point toward something more serious.

If your dog is showing any of these after eating something questionable, don’t wait to see if it passes. Ring your vet and describe exactly what happened.

Preventing the problem in the first place

Most toxic food incidents aren’t a dog stealing something dramatic off a plate. It’s usually something left within reach: a bag of grapes on the counter, chocolate in an open cupboard, a bin that isn’t secured.

Keeping the genuinely dangerous items out of reach entirely, rather than relying on a dog’s self-control, removes most of the risk before it starts.

Bookmark this page and check back whenever you’re unsure. It’s a much faster way to get an answer than searching through conflicting advice while you’re already worried.