Dogs eat things they shouldn't. Sometimes it's harmless; sometimes life-threatening. Knowing which foods are toxic — and what to do if your dog gets into them — can save your dog's life.

Life-Threatening

Chocolate

Contains theobromine, which dogs metabolize poorly. Toxicity depends on type and dog size:

  • Baking chocolate: Most dangerous — 0.1 oz/lb body weight potentially lethal
  • Dark chocolate: 0.5 oz/lb potentially lethal
  • Milk chocolate: Less concentrated but toxic — 1 oz/lb for serious symptoms
  • White chocolate: Very low theobromine — fat is main concern

Symptoms: vomiting, diarrhea, hyperactivity, tremors, seizures, abnormal heart rhythm. Call your vet immediately.

Xylitol (Birch Sugar)

Sugar-free gum, mints, peanut butter, baked goods, toothpaste, some medications. Causes rapid insulin release leading to hypoglycemia and potentially liver failure. Even small amounts dangerous — a few pieces of sugar-free gum can be lethal. ALWAYS check peanut butter labels.

Grapes and Raisins

Cause acute kidney failure unpredictably — some dogs eat them fine, others develop failure from a few. The toxic compound is tartaric acid. Any amount warrants immediate vet visit.

Onions, Garlic, Chives, Leeks (Allium Family)

Damage red blood cells causing anemia. More dangerous cumulatively than acutely. Watch for: garlic powder in flavored foods, onion in commercial broths/sauces.

Alcohol

Dogs metabolize poorly. Small amounts cause vomiting, disorientation, breathing problems, coma. Beer-soaked food at parties is a common exposure.

Macadamia Nuts

Cause weakness, tremors, hyperthermia. Mechanism not fully understood. Even small amounts affect dogs.

Raw Bread Dough

Yeast continues fermenting in warm stomach, producing alcohol and CO2. Potentially causes stomach distension/bloat.

Moderately Dangerous

Avocado

Contains persin. Toxicity to dogs is debated — best to avoid. Pit poses choking/obstruction risk.

Caffeine

Coffee, tea, energy drinks. Similar effects to chocolate.

Cooked Bones

Splinter easily. Cause GI perforation, choking, obstruction. Chicken bones particularly risky.

Salt

Excessive salt causes sodium ion poisoning. Pretzels, chips, salted nuts, ham, sea water.

Fatty Foods

Pancreatitis trigger. Bacon, ham, fatty trimmings, butter. Particularly dangerous for Schnauzers, Yorkies, Poodles.

Generally Safe in Small Amounts

  • Plain cooked chicken (no skin/bones/seasoning)
  • Plain cooked rice
  • Plain green beans
  • Plain pumpkin (no spices)
  • Carrots
  • Apples (no seeds/core)
  • Bananas
  • Blueberries
  • Watermelon (no rind/seeds)

What to Do

  1. Don't wait for symptoms
  2. Call vet or ASPCA Poison Control: 888-426-4435 (consultation fee but worth it)
  3. Have info ready: dog's weight, what was eaten, how much, when
  4. Don't induce vomiting unless instructed — some toxins cause more damage coming back up
  5. Bring packaging if commercial product

FAQ

How much chocolate is dangerous?

Any chocolate in a small dog warrants vet contact. Large dogs: small amounts of milk chocolate usually OK; any dark chocolate is concerning.

What about peanut butter?

Safe IF no xylitol. Always check ingredients — many "healthy" peanut butters now contain xylitol.

The Bottom Line

Keep human food out of reach. Save ASPCA Poison Control number (888-426-4435). When in doubt, don't give it.