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Many dog owners love sharing snacks with their pets, from pieces of fruit to crunchy vegetables or the occasional treat. But not all human foods are safe for dogs. One common curiosity arises with liquorice the sweet, chewy candy (or herbal root) many people enjoy.
Humans often consume liquorice in different forms, such as candies, teas, syrups, and herbal remedies. But should dogs be allowed to have a taste? Unfortunately, the answer is no. While liquorice may be harmless or even beneficial for humans, it can cause serious health issues in dogs.
In this article, we’ll explore why liquorice is unsafe for dogs, the risks it poses, symptoms of poisoning, what to do if your pet accidentally consumes it, and safe alternatives. By the end, you’ll have a clear understanding of why liquorice should never be on your dog’s snack list.
What Is Liquorice?
Liquorice comes from the root of the plant Glycyrrhiza glabra. The root has been used for centuries in traditional medicine for its anti-inflammatory, soothing, and sweetening properties. It contains a natural compound called glycyrrhizin, which gives it its distinctive taste.
There are two main types of liquorice products people commonly consume:
- Natural liquorice root – Often sold in teas, herbal remedies, extracts, or supplements.
- Commercial liquorice candy – Sweet treats (black liquorice, red liquorice, and flavored chews) that contain added sugars, artificial colors, and sometimes dangerous sweeteners like xylitol.
While liquorice root may have health benefits for humans, dogs process the compounds differently, making it unsafe for them.

Is Liquorice Safe for Dogs?
The straightforward answer is: No, liquorice is not safe for dogs.
Unlike fruits such as apples or blueberries that can be shared safely in small amounts, liquorice carries toxic risks that outweigh any potential benefits. Both natural liquorice root and processed liquorice candies pose dangers.
- Liquorice root: Contains glycyrrhizin, which can cause high blood pressure, low potassium levels, and even heart problems in dogs.
- Liquorice candy: Packed with sugar, artificial flavorings, and often harmful sweeteners (like xylitol) that are extremely toxic to dogs.
Even a small piece of liquorice candy can cause problems, and larger amounts may lead to severe poisoning.
Why Liquorice Is Harmful to Dogs
Let’s break down the specific reasons liquorice should never be given to dogs.
1. Toxic Compounds (Glycyrrhizin)
Glycyrrhizin, the primary active compound in liquorice, affects how the body regulates sodium and potassium. In dogs, this can:
- Cause water retention.
- Raise blood pressure.
- Lead to muscle weakness and irregular heartbeat.
- Strain the heart and kidneys.
This makes liquorice particularly dangerous for dogs with pre-existing conditions like heart disease, kidney disease, or hypertension.
2. High Sugar Content
Commercial liquorice candy is often loaded with sugar. Excess sugar is harmful to dogs because it can:
- Contribute to obesity.
- Increase the risk of diabetes.
- Lead to dental issues like cavities, plaque, and gum disease.
3. Artificial Sweeteners (Xylitol)
Some liquorice candies—especially sugar-free varieties—contain xylitol, a sweetener that is highly toxic to dogs. Even a tiny amount of xylitol can cause:
- Sudden drop in blood sugar (hypoglycemia).
- Seizures.
- Liver failure.
- Death in severe cases.
4. Additional Unsafe Ingredients
Liquorice products sometimes contain other harmful additives:
- Caffeine in certain candies or teas.
- Chocolate coatings, which are toxic to dogs.
- Artificial colors and preservatives, which may cause allergic reactions.
Together, these risks make liquorice a no-go food for all dogs.
Symptoms of Liquorice Poisoning in Dogs
If a dog eats liquorice, the symptoms may vary depending on how much was consumed and what type. Some signs appear quickly, while others develop over time with repeated ingestion.
Common symptoms include:
- Vomiting.
- Diarrhea.
- Loss of appetite.
- Excessive thirst and urination.
- Lethargy or weakness.
- Muscle tremors.
- Elevated heart rate.
- High blood pressure.
- Seizures (in severe cases).
If your dog has eaten liquorice and shows any of these symptoms, seek veterinary help immediately.
What To Do If Your Dog Eats Liquorice
Accidents happen—dogs are curious and may sneak a piece of candy or lick up spilled tea. Here’s what you should do:
- Stay calm but act quickly. Panic can delay getting your dog the help it needs.
- Remove access. Make sure your dog doesn’t eat more liquorice.
- Check the ingredients. Look for xylitol, caffeine, or other dangerous additives on the label.
- Call your veterinarian. Provide details such as your dog’s size, how much liquorice was eaten, and the product ingredients.
- Contact a pet poison helpline if your vet is unavailable.
- Do not induce vomiting unless specifically instructed by your vet.
Prompt treatment is essential to reduce risks and save your dog from serious health complications.
Safe Alternatives to Liquorice for Dogs
Instead of offering liquorice, consider healthier, dog-friendly snacks that provide sweetness and nutritional benefits without the risks.
Fruits Safe for Dogs (in moderation):
- Blueberries – Antioxidant-rich and low in sugar.
- Apples (seedless) – Crunchy, vitamin-packed treats.
- Bananas – Naturally sweet, but high in sugar, so serve sparingly.
- Watermelon (seedless) – Hydrating and safe for hot days.
- Strawberries – Low-calorie and packed with vitamin C.
Vegetables Safe for Dogs:
- Carrots (crunchy, great for teeth).
- Cucumbers (hydrating and low-calorie).
- Green beans (fiber-rich).
Dog-Specific Treats:
- Vet-approved dental chews.
- Homemade frozen yogurt cubes (unsweetened, xylitol-free).
- Peanut butter (xylitol-free).
These alternatives are much safer and will still satisfy your dog’s desire for a special treat.
Frequently Asked Questions (FAQs)
1. Can Dogs Eat Liquorice Root Tea?
No. Liquorice root tea contains concentrated glycyrrhizin, which can be toxic for dogs. Even small amounts can raise blood pressure and upset electrolyte balance.
2. Is Red Liquorice Safe for Dogs?
No. Red liquorice may not contain natural liquorice root, but it is still packed with sugar, artificial flavors, and sometimes xylitol—all of which are unsafe.
3. What Happens If My Dog Eats a Small Piece of Liquorice?
A single small piece may not cause immediate harm, but it’s still risky. Monitor your dog closely for vomiting, diarrhea, or lethargy, and call your vet for advice.
4. Why Can Humans Eat Liquorice but Dogs Cannot?
Humans and dogs metabolize compounds differently. Glycyrrhizin, sugar, and xylitol are tolerable for people in moderation but can overwhelm a dog’s system.
5. Are There Any Benefits of Liquorice for Dogs?
No safe benefits exist. While liquorice root may have anti-inflammatory effects in humans, the risks for dogs far outweigh any potential positives.
Conclusion
So, can dogs eat liquorice? The answer is a firm no. Liquorice whether root, tea, or candy is unsafe for dogs. The compound glycyrrhizin can disrupt your dog’s health, while sugar, artificial flavors, and xylitol add even greater risks.
If your dog accidentally eats liquorice, contact your veterinarian right away. Never assume it’s harmless, as even small amounts can lead to serious complications.
Instead, treat your furry friend to safe and healthy alternatives like blueberries, apple slices, or vet-approved dog treats. Remember: a dog’s health and safety always come first, and avoiding risky foods is the best way to keep tails wagging and hearts healthy.