Can dogs drink soda or cola?

A 355 ml (12 oz) can of cola typically contains 30 to 40 mg of caffeine, and some citrus sodas and so-called max or extra versions contain more. That is far less than coffee, but a small dog that drinks a large bottle can still take in enough caffeine to become restless, vomit, or develop a fast heart rate.

Caffeine-free sodas remove this particular risk but still contain sugar or sweeteners, acids, and fizz.

A regular can of cola holds around 35 to 40 g of sugar, about 140 calories. That is a quarter of a 10 kg (22 lb) dog's daily energy in a few seconds of lapping. Diet sodas usually rely on aspartame, sucralose, or acesulfame, which are not known to be toxic to dogs, but it is worth checking any unusual brand for xylitol.

Carbonation can cause gas, burping, and a bloated, uncomfortable belly.

Knocked-over cans at barbecues, cups left on low tables, and drinks in car cup holders are the usual sources. Dogs also chew aluminum cans and plastic bottles, and sharp can edges can cut the tongue and lips. Rinse empty cans before putting them in recycling bags that sit on the floor.

Soda-flavored sweets and cola-flavored gummies carry sugar and sometimes caffeine too.

Fresh, clean water is the only drink a healthy dog needs. On hot days, add ice cubes to the water bowl or offer a frozen dog-safe treat. A healthy dog typically drinks around 50 ml per kg of body weight per day, more after exercise or in warm weather, so keep the bowl full and within reach wherever your dog spends time.