Chocolate and cocoa, xylitol, grapes and raisins, onions and garlic, alcohol, caffeine, macadamia nuts, and raw yeast dough can be dangerous to dogs. Risk assessment depends on the substance, amount, body weight, and time of ingestion. If exposure is possible, call a veterinarian or emergency veterinary hospital immediately and do not wait for symptoms.
Key points
- Call immediately; early treatment can be critical.
- Have the packaging, ingredients, amount, time, and the dog's body weight ready.
- Do not induce vomiting or give home remedies unless a veterinarian specifically instructs you to do so.
What to Do Now
Remove any remaining material, secure the package or ingredient list, and call a veterinarian, emergency veterinary hospital, or veterinary poison service. Report the product, estimated amount, time of ingestion, body weight, and any current signs.
Do not wait for signs to appear. Some effects develop later. Vomiting should be induced only after specific veterinary instruction because it can introduce additional risks depending on the substance and the dog's condition.
Evidence: MSD Veterinary Manual
Important Food Hazards
The following list is not exhaustive. Depending on the substance and the dog, even a small amount may be relevant; an online table cannot replace an individual risk assessment.
| Food or material | Possible risk | Action |
|---|---|---|
| Xylitol | hypoglycemia and possible liver injury | call immediately |
| Chocolate / cocoa | cardiac, neurologic, and gastrointestinal signs | call immediately |
| Grapes / raisins | possible acute kidney injury | call immediately |
| Onion, garlic, leek | damage to red blood cells | seek prompt advice |
| Alcohol / raw yeast dough | alcohol poisoning and abdominal distension | call immediately |
| Caffeine | agitation, abnormal heart rhythm, and neurologic signs | call immediately |
| Macadamia nuts | possible weakness, tremors, and overheating | call for advice |
| Bones / foreign objects | dental, esophageal, or intestinal injury | seek advice after ingestion or if signs occur |
Evidence: MSD Veterinary Manual
Prevent Accidental Poisoning
Keep hazardous foods and sugar-free products out of reach. Make sure household members and guests understand that a small dog can receive a relevant dose from a relatively small amount.
- Check gum, candy, and baking ingredients for xylitol.
- Secure bags, seasonal chocolate calendars, and wrapped gifts.
- Store medications and supplements separately and out of reach.
- Save the telephone numbers for your regular veterinarian and nearest emergency hospital.
Evidence: MSD Veterinary Manual
What readers ask about this topic
How much chocolate is dangerous to a dog?
Risk depends on cocoa content, amount, and the dog's body weight. Dark chocolate and baking cocoa are generally more concentrated. Have the dose assessed professionally without delay.
Can I give salt or hydrogen peroxide to make my dog vomit?
No. These measures can themselves be dangerous. Induce vomiting only when a veterinarian specifically instructs you to do so.
Technical sources used
- Food HazardsMSD Veterinary Manual
Veterinary reference on foods that may be hazardous to companion animals.
Source checked July 26, 2026
Sources for this guide were last checked on July 26, 2026. FEDIAF is a European pet-food industry federation; where its guidance is used, that institutional role is stated rather than hidden.