Can Dogs Drink Carbonated Water? Risks, Myths & Expert Advice

Seeing how bubbles upset canine digestion reveals healthier ways to keep pets hydrated.

By Shinta

Created on Aug 29, 2025

Seeing how bubbles upset canine digestion reveals healthier ways to keep pets hydrated.

You’re enjoying a fizzy drink when your dog looks up with curious eyesâcan you safely share a sip of carbonated water with your canine companion? This guide explores the science, risks, and expert opinions behind giving dogs sparkling water, so you can make informed hydration choices for your pet.

Understanding Carbonated Water: What Is It?

Carbonated waterâalso called sparkling water, soda water, or fizzy waterâis water infused with carbon dioxide gas under pressure, creating its distinctive bubbles and effervescence. While it has become a popular alternative to still water for people, it’s important to consider how these bubbles might affect dogs’ digestion and overall health.

Can Dogs Have Carbonated Water?

Experts generally do not recommend giving carbonated water to dogs. While there is no conclusive research that proves carbonated water is toxic or universally dangerous to dogs, veterinarians urge caution. Occasional small tastes are unlikely to harm a healthy dog, but there are several reasons to avoid offering it regularly or as a primary source of hydration:

Digestive discomfort: The carbonation can lead to gas, bloating, burping, or mild abdominal pain.
Potential for bloat: While rare, gas buildup could theoretically contribute to bloat (gastric dilatation-volvulus), especially in large, deep-chested breeds.
Risks from added ingredients: Many carbonated waters and sodas contain flavorings, sweeteners, caffeine, or other additives that can be very dangerous to dogs.
Lack of benefit: Sparkling water does not provide hydration advantages over regular water and may deter some dogs from drinking enough.

What About the Bubbles? Gas and Bloat Concerns

The main worry about carbonated water for dogs centers on the bubblesâspecifically, the carbon dioxide gas that gives sparkling water its fizz.

Possible gas buildup: According to veterinarians, ingesting a lot of carbonation can cause gas to build up in a dogâs digestive tract. While this may just produce mild bloating and burping, it could lead to more serious concerns in rare cases.
Bloat risk: Large and deep-chested dog breeds are at much higher risk for gastric dilatation-volvulus (bloat), a life-threatening condition where the stomach fills with gas and twists. No direct evidence links carbonated water to bloat, but experts recommend not taking chances.
Symptoms to watch for: Restlessness, swelling of the abdomen, retching without vomiting, drooling, and signs of pain may indicate bloat. Immediate veterinary attention is critical if these occur.

Expert Opinion: Dr. Richterâs View

According to Dr. Richter, a board-certified veterinarian, thereâs little to no research on how carbonated water affects dogs specifically. He advises that, âwhile carbonated water is OK in a pinch, itâs not something I would recommend.â His chief concern is gas buildup, and while itâs unclear if it can trigger bloat, it remains a risk, especially for large breeds.

Common Hydration Mistakes: Skip the Soda

Some pet parents may wonder if sodas or flavored sparkling waters are safer or more appealing for their pets. Veterinarians warn strongly against all sweetened and flavored carbonated drinks for dogs.

Caffeine toxicity: Soda often contains caffeine, which is much more dangerous for dogs than for people. Even small amounts can result in vomiting, diarrhea, hyperactivity, elevated heart rate, hypertension, seizures, or worse.
Xylitol poisoning: Sugar-free and diet sodas may contain xylitol, an artificial sweetener extremely toxic to dogs. Even tiny quantities can cause rapid insulin release, resulting in life-threatening hypoglycemia (low blood sugar), liver failure, and clotting disorders.
Other toxins and irritants: Flavored carbonated beverages can include artificial sweeteners, citrus oils, and preservatives that may upset your dog’s digestion or present other hazards.

Stick to clean, plain water for your dog’s main hydration.

Best Practices for Hydrating Your Dog

Proper hydration is crucial for your petâs health, growth, and organ function. Here are some guidelines:

Always offer fresh, clean water.
Avoid carbonated drinks (including sodas and sparkling water) as a regular beverage.
Bring water from home or use a portable dog bowl when traveling or hiking.
Monitor intake to ensure your dog is drinking enough, especially during hot weather or after activity.
Consult your vet if your dog is excessively thirsty, or suddenly loses interest in drinking.

Potential Risks of Carbonated Water for Dogs

Risk	Description	Severity Level
Bloating/Gas	Carbonation can cause burping, discomfort, or mild abdominal swelling.	Low to Moderate
Bloat (GDV)	Large breeds may be at risk for rare but fatal gastric torsion if gas accumulates.	High (for susceptible breeds)
Xylitol Toxicity	Sugar-free drinks may contain xylitol, which is life-threatening to dogs.	Severe
Caffeine Toxicity	Caffeinated sodas can cause heart, digestive, or neurological symptoms.	Severe
Artificial Flavors	Some additives, flavorings, or sweeteners are harmful or irritating to dogs’ digestion.	Moderate
Dehydration	Bubbles may discourage drinking, leading to lower water intake.	Moderate

Frequently Asked Questions: Dogs and Carbonated Water

Can dogs drink sparkling water in small amounts?

Small tastes of plain, unflavored carbonated water are unlikely to cause harm in most healthy dogs, but it should not be a regular part of their diet. Monitor for signs of gas or discomfort, and always provide access to fresh water.

Is tonic water safe for dogs?

No. Tonic water often contains quinine and sugar (or artificial sweeteners), which can be harmful or toxic to dogs.

My dog drank soda, what should I do?

If your dog ingested soda, especially if it contained caffeine or xylitol, contact your veterinarian or the Pet Poison Helpline immediately. Monitor for vomiting, agitation, or other symptoms. Even a small amount may require urgent care.

What about flavored sparkling waters marketed as ‘healthy’?

Most sparkling waters with added flavors, sugars, or artificial sweeteners are not safe for dogs. Xylitol, in particular, is life-threatening, and even natural citrus oils can be irritating or toxic.

Are there ever health benefits to giving a dog carbonated water?

No studies suggest any benefit over plain water. The bubbles may be unpleasant or reduce hydration. There is no advantage, and several potential risks.

Which breeds are at highest risk for bloat?

Large and deep-chested breeds (such as Great Danes, German Shepherds, Standard Poodles, and Dobermans) face a higher risk for stomach bloat. Even without enough research directly linking carbonated water to bloat, experts recommend taking extra caution with these breeds.

Healthy Hydration Alternatives for Dogs

If you want to add variety to your dog’s water without risking their health, consider these safer options:

Chilled fresh water (add ice cubes to their bowl in warm weather)
Low-sodium bone broth (check labelsâmust be onion and garlic free)
Dog-friendly electrolyte solutions (with vet guidance)
Adding flavor by soaking toys or treats in their regular water

Key Takeaways

Plain carbonated water is not toxic, but it can cause digestive upset and is best avoided, especially for breeds at risk of bloat.
Never offer sodas, tonics, or flavored sparkling waters containing caffeine, xylitol, or other unsafe additives.
The best way to hydrate your dog is with fresh, still waterâwhich ensures optimal health and prevents avoidable risks.
When in doubt, ask your veterinarian before offering any new food or beverage.

Additional Resources

Consult your veterinarian with any concerns about dietary changes or unusual symptoms in your dog.
Visit the ASPCA Animal Poison Control Center or Pet Poison Helpline for emergency advice about ingestion of dangerous foods or beverages.
Read more about safe canine nutrition from reputable sites such as the American Kennel Club (AKC), Pet Poison Helpline, and your local veterinary medical association.

References

Author

Shinta

Shinta is a biotechnologist turned writer. She holds a master's degree in Biotechnology from Karunya Institute of Technology and Sciences and a PG Diploma in cellular and molecular diagnostics from Manipal University. Shinta realised her love for content while working as an editor for a scientific journal.

Read full bio of Shinta