Every dog is different. Individual allergies and sensitivities are common — always introduce new foods in small amounts and watch for adverse reactions. This site is for informational purposes only and is not veterinary advice. Always consult your vet.
The Full Picture
Dogs should never be given soda or fizzy drinks. Regular soda is extremely high in sugar, which can cause obesity, diabetes, and dental disease. Diet or sugar-free sodas are even more dangerous, as they often contain xylitol or other artificial sweeteners that are highly toxic to dogs — xylitol can cause a rapid drop in blood sugar and liver failure. Many sodas also contain caffeine, which is toxic to dogs and can cause restlessness, rapid heart rate, tremors, and seizures. The carbonation itself can cause bloating and gastrointestinal discomfort. If your dog accidentally drinks soda containing xylitol or caffeine, contact your vet immediately.
What You Should Know
Soda should be kept well away from dogs. If your dog has drunk soda, watch for symptoms such as vomiting, diarrhea, lethargy, or loss of appetite. In an emergency, contact your veterinarian or an animal poison helpline straight away.