Foods Dogs Can't Eat: The Complete Guide

Every dog owner eventually faces the same moment: the dog is looking at something on your plate, and you are not sure whether it is a problem. Some foods are dangerous in any amount, some depend entirely on the dog and the quantity, and a few are genuinely fine.

This guide sorts them into those three groups. Where a food has a full article on this site, it is linked so you can check the details for your dog's size and situation.

Toxic Foods: No Amount Is Safe

These foods cause poisoning in dogs at doses a dog can realistically eat. They all belong out of reach, not merely in small portions.

Two things make this list more dangerous than it looks. First, several of these foods appear where you would not expect them: xylitol in a "natural" peanut butter, onion powder in a stock cube, cocoa mulch in the garden bed. Second, dogs often eat these items without anyone noticing, and the earliest symptoms can look like ordinary stomach upset.

Grapes deserve a special mention because the reaction is unpredictable. One dog eats a handful of raisins with no effect, and another goes into kidney failure from a much smaller amount. Nobody can tell in advance which dog is which, so the only safe approach is to treat any grape or raisin ingestion as a possible emergency.

Foods That Depend on the Dog

These are not poisons. They are foods where the amount, the dog's body weight, and the dog's health determine whether anything happens.

Cooked bones. They splinter into sharp fragments that can perforate the mouth, esophagus, or intestine. Raw bones are less likely to splinter, but they still crack teeth, can cause constipation or a blockage, and carry bacteria such as Salmonella. Vets treat bone obstructions regularly enough that the risk is not theoretical.

High-fat foods. Bacon, sausage, butter, cream, pan drippings, and fat trimmings can trigger pancreatitis, a painful inflammation that requires hospitalization. Dogs who have had one episode are prone to more.

Salty foods. A single chip is nothing. A whole bag of chips, a bowl of salty popcorn, or a jar of pickles can cause vomiting, diarrhea, tremors, and, in extreme cases, sodium poisoning. Salt dough ornaments and play dough are common culprits during the holidays.

Dairy. Most adult dogs produce little lactase, the enzyme needed to digest milk sugar, so cheese, milk, and ice cream often cause gas, loose stools, and vomiting. A small piece of hard cheese is usually tolerated; a bowl of milk is not.

Raw meat and eggs. The risk is bacterial — Salmonella, E. coli, and Campylobacter — both for the dog and for the people handling the food. If you feed raw, treat it as a food safety exercise and talk to your vet about the trade-offs.

Pits, stones, and cobs. Peach, plum, cherry, and apricot pits, avocado pits, and corn cobs are not toxic in the way grapes are, but they are hard, indigestible, and exactly the wrong size. They cause blockages that need surgery.

Avocado. The flesh is low-risk for dogs in small amounts, despite the reputation it has. The pit is the real hazard, along with the fat content of the fruit and the fact that many avocado dishes also contain onion or garlic.

Leftovers in general. A dog who gets a spoonful of stew every night is taking in salt, fat, onion, and garlic steadily. Individually each spoonful looks harmless; over months it is not.

Foods That Are Fine in Small Amounts

For a healthy adult dog, these are reasonable treats when they are plain and portioned sensibly:

• Plain cooked chicken, turkey, or lean beef, with no seasoning
• Plain white rice, pasta, or oatmeal
• Small pieces of ripe apple, banana, watermelon, blueberries, or strawberry, with seeds and pits removed
• Plain carrot, cucumber, green bean, or cooked pumpkin
• A small piece of hard cheese or a spoonful of plain yogurt, for dogs who tolerate dairy

The general rule for all of them is the same one your vet will give you: treats, including fruit, should not exceed about 10% of your dog's daily calories. The other 90% should come from a complete and balanced dog food.

What to Do If Your Dog Ate Something on This List

Call your veterinarian or an emergency clinic, describe what was eaten and roughly how much, and follow their advice. Do not wait for symptoms, and do not try to make your dog vomit on your own.

• ASPCA Animal Poison Control Center (US): (888) 426-4435 — a consultation fee may apply
• Pet Poison Helpline (US and Canada): (855) 764-7661

If you cannot reach anyone, go to the nearest emergency veterinary hospital. Bring the packaging if you still have it, or a photo of the ingredient list, which saves time on the phone.