⚡ In short
- Most dangerous: chocolate, grapes and raisins, onion and garlic, xylitol and alcohol.
- Even small amounts can be dangerous — call your vet straight away.
- Don't try to make your dog vomit unless your vet tells you to.
- Carrots, cucumber, apple without seeds and plain cooked chicken are safe snacks.
Most dangerous foods
| Food | Why | Possible signs |
|---|---|---|
| Chocolate, cocoa | Theobromine and caffeine; dark chocolate is worst | Vomiting, diarrhoea, tremors, fast heart rate, seizures |
| Grapes, raisins | Can cause kidney failure; no known safe amount | Vomiting, lethargy, less urine |
| Onion, garlic, leek | Damage red blood cells (cooked and powdered too) | Weakness, pale gums, anaemia |
| Xylitol | In sugar-free gum, sweets, some peanut butters; drops blood sugar fast | Vomiting, wobbling, seizures, liver damage |
| Alcohol | Small amounts can poison | Wobbling, vomiting, slowed breathing |
| Macadamia nuts | Affect muscles and nerves | Hind-leg weakness, tremors, fever |
Other foods to avoid
- Cooked bones can splinter
- Raw yeast dough expands and produces alcohol
- Caffeine: coffee, tea, energy drinks
- Very salty or fatty food can trigger pancreatitis
- Milk: many adult dogs are lactose intolerant
- Fruit stones and pits
If your dog eats something toxic
- Remove your dog and any leftovers.
- Note what, roughly how much and when; keep the packaging.
- Call your vet or a pet poison helpline immediately — don't wait for symptoms.
- Don't induce vomiting unless told to; home remedies like salt water can harm.
Safe snacks
- Carrot, cucumber, courgette
- Apple and pear without core and seeds
- Seedless watermelon without rind
- Plain cooked chicken or turkey
- Plain cooked rice and oats
Treats should stay under 10% of daily calories.
Frequently asked questions
What happens if a dog eats chocolate?
Theobromine can cause vomiting, diarrhoea, tremors, abnormal heart rhythm and seizures. Call your vet straight away.
Can dogs eat grapes?
No. Grapes and raisins can cause kidney failure and no safe amount is known.
Which fruits can dogs eat?
Apple and pear without seeds, seedless watermelon, a little banana and blueberries are usually safe.