My Dog Ate Chocolate: What to Do Right Now

Call your vet now if

• You know or suspect your dog has eaten any chocolate, cocoa powder, chocolate cake, brownies or chocolate-covered treats, even a small amount
• Your dog has eaten dark chocolate, cooking or baking chocolate, or cocoa powder
• Your dog is vomiting, restless, panting, shaking or seems unusually excited after getting into chocolate
• Your dog has a racing heartbeat, is wobbly on their feet, has muscle twitching or has a seizure
• Your dog has collapsed or is hard to rouse
• You are not sure what they ate or how much — it is always reasonable to ring and ask

Why chocolate is a problem for dogs

Chocolate contains natural stimulants, mainly theobromine and a smaller amount of caffeine. People break these down quickly. Dogs process them far more slowly, so the effects build up and last much longer. They act on the heart, the nervous system and the gut, which is why a dog who has eaten chocolate can become restless, sick and, in more serious cases, develop heart rhythm problems or seizures.

How risky it is depends on three things: the type of chocolate, how much was eaten and the size of your dog. A small square of milk chocolate may cause little more than an upset tummy in a large dog, while the same amount of dark chocolate could be a real concern for a small one. You do not need to work this out yourself. Your vet or a poison helpline will assess the risk from the details you give them, and they will tell you whether your dog needs to be seen.

What to do right now

1. Stay calm and stop any more being eaten. Move your dog away from the chocolate and gather up anything left, including wrappers and packaging.

2. Collect the key information. Before or while you call, try to have to hand:

• The wrapper or packaging, so you can read out the type of chocolate and the cocoa percentage
• A rough idea of how much is missing — a few squares, half a bar, a whole box
• Roughly when it happened, even if it is only a best guess
• Your dog's approximate weight
• Anything else that might have been in the product, such as raisins, nuts, coffee or sweeteners

3. Call your vet or a pet poison helpline. Do this even if your dog is bouncing around as normal. Many dogs look perfectly well for the first few hours, and waiting for signs can mean losing the window when treatment is simplest. If it is out of hours, call your local emergency vet.

4. Follow the advice you are given. This may be to bring your dog in straight away, to monitor at home, or to call back if anything changes.

Do not make your dog sick at home

It is natural to want to get the chocolate out as quickly as possible, but please do not try to make your dog vomit unless a vet has specifically told you to and explained how. Home remedies such as salt, mustard or washing-up liquid can be dangerous in their own right, and some can cause serious harm. If your vet decides your dog needs to be made sick, they can do it safely at the practice with medicines designed for the job, and they can offer further treatment if needed.

Which chocolate is most dangerous

As a general guide, the darker and more bitter the chocolate, the more stimulant it contains.

• Cocoa powder, cooking chocolate and baking chocolate are the most concentrated and the most concerning.
• Dark chocolate is next. High cocoa percentages carry more risk.
• Milk chocolate contains less, but a large amount can still make a dog unwell, especially a small dog.
• White chocolate contains very little stimulant, but it is not safe. It is very high in fat and sugar, which can cause vomiting and diarrhoea and, in some dogs, a painful inflammation of the pancreas.

Remember that chocolate often comes with other ingredients. Raisins, macadamia nuts, coffee and the sweetener xylitol can all be harmful to dogs too. Mention everything on the label when you call. You can read more about chocolate and other risky foods on our toxic foods page.

Signs to watch for

Signs usually appear within a few hours of eating chocolate, but they can be delayed, and because dogs clear the stimulants slowly, they can last a day or more. Watch for:

• Vomiting or diarrhoea
• Restlessness, pacing or being unable to settle
• Excessive thirst or needing to wee more often
• Panting, a fast heartbeat or seeming overexcited
• Trembling, twitching or stiffness
• Wobbliness or lack of coordination
• Seizures or collapse

If any of these appear, or get worse, call your vet again straight away, even if you have already spoken to them.

While you wait or once you are home

If you have been advised to monitor your dog at home, keep them somewhere quiet and calm, make sure they have water, and take them out to the toilet regularly. Check on them often, including overnight if possible. It can help to jot down the time of anything you notice — a bout of sickness, pacing, a change in breathing — so you can describe it clearly if you need to call back. Logging these details in Petopedia keeps them in one place and helps you give your vet a clear picture of what has happened and when.

Preventing it next time

Most chocolate incidents happen at busy times of year, when there is simply more of it around and routines are disrupted.

• Christmas: chocolate tree decorations, selection boxes under the tree and advent calendars are all within easy reach of a curious nose. Wrapped presents can contain chocolate too, and dogs can smell it through paper.
• Easter: eggs left on low tables and egg hunts in the garden are common culprits. Count the eggs in and out, and keep your dog indoors while children hunt.
• Birthdays and parties: cake, brownies and sweets tend to be left at nose height, and guests may not know the rules.
• Everyday habits: keep handbags, coats and shopping bags off the floor, and store baking supplies such as cocoa powder in a closed cupboard.

Let visitors and children know that chocolate is not a treat for dogs, and keep some dog-safe treats handy so everyone can still share something.

The key takeaway

If your dog has eaten chocolate, the safest step is always to call your vet or a pet poison helpline promptly, with the wrapper and the details to hand. Do not wait for signs and do not try home remedies. Most dogs who get prompt advice and treatment recover well.