Vinegar is acidic, and while some people use it for health reasons, it can cause stomach problems for dogs.
There's no evidence that vinegar benefits dogs, and its strong smell and taste might make them avoid their water.
Vinegar contains acetic acid, which can irritate their mouths and throats, making it unsuitable for consumption.
Even if a small amount seems harmless, some vinegars contain trace amounts of alcohol, which is toxic to dogs.
