A handful of everyday foods are dangerous to dogs, some of them badly enough to be life-threatening. With most of these, how much a dog ate and how big the dog is decide how serious it gets, which is exactly why the safe approach is to keep them off the menu entirely and act fast if your dog does get to something.
The foods to keep away, and why
- Chocolate. It contains theobromine and caffeine, stimulants that act on a dog's heart and nervous system. Darker chocolate is the most dangerous of all. Baking chocolate and cocoa powder carry the most theobromine, while milk chocolate is much milder and white chocolate barely counts. A dog that has had chocolate may become restless or sick, and with a large enough amount it can affect the heart and nervous system seriously.
- Grapes, raisins and currants (kishmish). These have been reported to cause kidney failure in dogs, and the toxic ingredient still is not known, so there is no amount considered safe. Raisins hide inside a lot of sweets and baked goods.
- Onion and garlic, along with leek and chives, the whole Allium family. Their sulfur compounds damage a dog's red blood cells and can cause anaemia. Cooking, drying or frying does not remove the danger, which is the real trouble, because onion and garlic form the base of most Indian cooking.
- Xylitol. This sugar-free sweetener turns up in some chewing gums, mints, diet sweets and toothpastes, and in dogs it can trigger a sudden, dangerous drop in blood sugar and harm the liver.
- Macadamia nuts, caffeine (chai, coffee, energy drinks), alcohol, and raw bread or pizza dough, where the yeast keeps producing alcohol as the dough rises. All sit on the FDA's list of items hazardous to pets.
Why "just a little" is not the reassurance it sounds
Because the harm from several of these depends on the dose, a stray lick of gravy is not the same as a bowlful. That cuts both ways, though. A small dog can reach a dangerous amount from what looks like very little, and with onion and garlic the damage can build up from repeated small servings rather than one big one. The habit that actually keeps a dog safe is to treat the whole list as off-limits, instead of trying to judge a "safe" amount in the moment.
The Indian-kitchen watch-list
In an Indian home, most of the danger is cooked right into the everyday food:
- The onion-garlic masala base in sabzi, dal tadka, biryani and gravies.
- Mithai and chocolate around festivals, some of it also carrying raisins or nuts.
- Sugar-free products, since "sugar-free" gum or sweets may contain xylitol.
- Fried, oily and heavily salted leftovers, which upset a dog's stomach before you even reach the toxic ingredients.
- Cooked bones and corn cobs off your plate, a choking and blockage risk of a different kind.
This is the real reason to skip sharing your food. Even a plain-looking spoon of gravy usually has onion and garlic cooked right into it.
What to do if your dog eats something toxic
Do not wait to see what happens. With several of these foods a dog can seem fine at first, so the safer move is to act because they ate it, even while they still look completely normal:
- Take away whatever is left, so your dog cannot eat more.
- Note what it was, roughly how much, and when. If there is a wrapper or packet, keep it.
- Call your vet, or the nearest open clinic, straight away and follow their advice.
India does not yet have a single national pet-poison helpline, so your own vet or an emergency clinic is the first call. Do not try to make your dog vomit unless a vet tells you to, because with some substances that does more harm than good.
Frequently asked questions
My dog ate chocolate but seems fine. Should I worry?
Yes, call your vet anyway. A dog can look normal early on, and the right response depends on the type of chocolate and how much your dog ate for their size. It is worth a quick call even if your dog seems perfectly fine.
Can one grape kill a dog?
Take it seriously. Grapes and raisins have no known safe dose and can affect the kidneys, so vets treat any real ingestion as worth prompt attention. Keep them away entirely, and call your vet if your dog eats some.
Is a little onion or garlic okay?
It is best avoided. The harm from onion and garlic can add up from repeated small amounts as well as one large one, and cooking does not make them safe. A stray lick of gravy is not an emergency, but do not feed onion- or garlic-based food on purpose.
What foods can dogs not eat?
The main ones are chocolate, grapes and raisins, onion and garlic, xylitol, macadamia nuts, caffeine, alcohol and raw dough. For the wider picture of what is safe as against what is not, the main food guide lays it out.
The bottom line
Keep chocolate, grapes and raisins, onion and garlic, and anything with xylitol firmly away from your dog, and treat onion and garlic as the pair most likely to reach the bowl by accident, since they are cooked into so much of what we eat. If your dog does get to something on this list, call your vet quickly instead of waiting. When you are planning meals rather than handling an accident, the homemade food guide covers how to leave these out and still feed well.
Sources
Potentially Dangerous Items for Your Pet. U.S. Food and Drug Administration, Center for Veterinary Medicine (chocolate, grapes and raisins, onion, garlic, xylitol, macadamia nuts, caffeine, alcohol, raw dough).
Household Food Items Toxic to Dogs and Cats. Cortinovis C, Caloni F, Frontiers in Veterinary Science, 2016 (open access) (Allium organosulfoxides cause oxidative hemolysis with Heinz bodies, and cooking does not remove the toxicity; grapes cause renal failure by an unknown mechanism; xylitol stimulates insulin release, causing hypoglycaemia; darker chocolate carries more theobromine).
