Foods Toxic to Dogs: The Complete Safety List

The most dangerous foods

• Chocolate and cocoa — contain theobromine and caffeine. Dark and baking chocolate are the most dangerous.
• Xylitol — a sweetener found in some sugar-free gum, candy, peanut butters and baked goods. It can cause a rapid drop in blood sugar and liver failure.
• Grapes, raisins and currants — can cause sudden kidney injury, even in small amounts.
• Onions, garlic, leeks and chives — damage red blood cells, in raw, cooked or powdered form.
• Macadamia nuts — cause weakness, tremors and fever.
• Alcohol and raw yeast dough — affect the nervous system; dough can also expand in the stomach.

Foods that are risky but less toxic

Fatty scraps can trigger pancreatitis. Cooked bones can splinter. Avocado pits and corn cobs are common causes of intestinal blockages.

What to do if your dog eats something toxic

Act quickly. Note what was eaten, how much and when, then call your vet, an emergency clinic, or the ASPCA Animal Poison Control Center. Don't try to make your dog vomit unless a professional tells you to — it isn't safe for every substance.

Why some human foods are dangerous

Dogs process some compounds very differently from people. Theobromine in chocolate, xylitol in sugar-free products and compounds in grapes and onions can cause serious illness even in small amounts. Toxicity often depends on the dog's size and the amount eaten, but some foods are dangerous in tiny quantities.

A closer look at the worst offenders

Xylitol is a sweetener found in sugar-free gum, some peanut butters, sweets and baked goods. In dogs it can trigger a rapid drop in blood sugar and, at higher doses, liver failure. Always check peanut butter labels before sharing.

Grapes, raisins, sultanas and currants can cause sudden kidney failure in some dogs. The toxic dose is unpredictable, so no amount is considered safe.

Chocolate contains theobromine and caffeine. Dark chocolate and baking cocoa are the most dangerous. Signs include vomiting, restlessness, rapid heart rate and seizures.

Onions, garlic, leeks and chives — raw, cooked or powdered — damage red blood cells. Signs may appear days after eating.

Hidden sources around the home

Toxic foods often reach dogs in unexpected ways:

• Handbags containing sugar-free gum or mints
• Christmas cakes, mince pies and hot cross buns with raisins
• Gravy, stock cubes and baby food containing onion or garlic powder
• Coffee grounds and tea bags in the bin
• Bread dough rising on the counter
• Leftover cooked bones, which can splinter

Prevention tips

Store food in closed cupboards, use a dog-proof bin, and keep bags and coats off the floor. Teach a solid 'leave it' cue and make sure guests and children know not to feed the dog.

Keep the number of your vet, the nearest emergency clinic and an animal poison helpline saved in your phone. Fast action greatly improves outcomes.

Information to give the vet

If your dog eats something toxic, the vet will want to know:

• What was eaten — bring the packaging if possible
• How much, and when
• Your dog's weight
• Any symptoms so far

Other risky foods to know

Macadamia nuts can cause weakness, trembling, vomiting and high temperature in dogs, often within twelve hours. Signs usually resolve within a few days, but a vet should still be contacted.

Alcohol affects dogs much faster than people. Even small amounts in drinks, desserts or rising bread dough can cause vomiting, disorientation, low blood sugar and breathing problems. Raw yeast dough also expands in the stomach, causing painful bloating.

Caffeine in coffee, tea, energy drinks and some medicines causes restlessness, rapid heart rate and tremors. Avocado contains persin, which is mainly a concern for other animals, but the large stone poses a choking and blockage risk to dogs.

Fatty foods and pancreatitis

Not every dangerous food is a classic toxin. Rich, fatty meals — bacon, sausages, turkey skin, gravy and fried leftovers — can trigger pancreatitis, an inflammation of the pancreas that causes vomiting, abdominal pain and lethargy. It can be severe and sometimes needs hospital treatment.

Holidays and barbecues are peak times for pancreatitis cases. Ask guests not to share scraps and keep bins secured.

Bones, cobs and choking hazards

Cooked bones become brittle and can splinter, causing mouth injuries, choking or damage to the gut. Corn cobs are a common cause of intestinal blockage because dogs swallow them in large pieces. Fruit stones, such as peaches and plums, are also blockage risks.

Signs of a blockage include repeated vomiting, inability to keep water down, a painful belly and lack of stool. This is an emergency.

Toxicity by dog size

Size makes a big difference. A small amount of dark chocolate that might only upset a large Labrador could be life-threatening to a Chihuahua. That is why vets always ask for your dog's weight and the exact product eaten. Online chocolate calculators can give a rough idea, but they are no substitute for calling a vet.

Safe alternatives to share

If you enjoy sharing food with your dog, these are generally safe in small amounts when plain:

• Carrot sticks and green beans
• Apple slices without seeds or core
• Plain cooked chicken or turkey without skin or bones
• Plain cooked rice or pumpkin
• Blueberries and seedless watermelon
• Xylitol-free peanut butter

Holiday and party safety

Celebrations bring a mix of chocolate, raisin cakes, fatty roasts, alcohol and distracted hosts. Keep your dog in a quiet room during busy parties, put food out of reach and remind visitors not to feed the dog. Check bags and coats for gum, mints and medicines.