how long can dogs go without food

Dogs can generally go without food for about 3 to 5 days, provided they are still drinking water. However, if a dog has not eaten for more than 48 hours, it is recommended to consult a veterinarian. Puppies and small breed dogs have shorter safe windows without food—around 12 to 24 hours for puppies and 2 to 3 days for small breeds—because they can develop hypoglycemia quickly. Larger dogs may last longer without food due to slower metabolisms and larger body mass. It is important to note that not eating for extended periods can lead to serious health complications and even death, especially if the dog is sick, dehydrated, or has underlying health issues. Additionally, dogs must not go longer than 24 hours without water, as dehydration becomes critical quickly. The best practice is to monitor the dog's condition closely and seek veterinary advice if food refusal lasts more than 1 to 2 days or if there are signs of illness or distress.