Is it normal for a dog not to eat after throwing up? A Comprehensive Guide

Why Do Dogs Vomit?

Dogs vomit for a variety of reasons, some more serious than others. Sometimes its easy to determine the cause, like when you see a chewed-up toy in the vomit or you know your dog ate something inappropriate, like unhealthy human food. Other times its much harder to determine the reason for vomiting. It may seem very gross, but you should examine the vomit before you clean it up.

Dietary indiscretion can be one cause of vomiting in dogs. This often happens after a dog gets into the trash or eats table scraps. Examining the vomit and your dogs behavior after the vomiting has stopped can give you clues to the cause. If the dog seems better after the vomiting, it was likely a dietary issue and may be resolved without any further complications. Keep a close eye on your dog for the next day or two, watching for more vomiting or other signs of illness.

Vomiting may also be caused by something more serious, such as toxin ingestion, gastrointestinal obstruction, pancreatitis, and more. Vomiting is one of the most common signs of illness reported by dog owners. Vomiting may be accompanied by diarrhea, loss of appetite, or lethargy. Not only is it important to understand why dogs vomit, but you should also know how to respond when your dog is throwing up.

Is Your Dog Not Eating Dry Food?

Does your dog turn up their nose at dry food, only to wolf down canned food the minute you set it down? This is a common complaint from pet parents, and it can mean a few different things.

It may be that your dog has dental or oral pain. Many pet parents believe that if their pet is eating, they must not have oral pain, but that’s not the case. They have to eat, so many dog struggle silently with oral pain for months or years until a dental procedure is done to extract any rotten or infected teeth.

While some dogs will still eat dry food even with severe oral pain, many prefer canned food, as it’s easier to chew. If your dog is no longer wanting to eat dry food but will eat canned, they should be seen by their veterinarian for an oral examination.

It may also be that your dog prefers canned food to dry food, as it often smells stronger and may be seen as more of a “treat.” Try mixing canned food with the dry kibble to encourage your dog to eat, and gradually transitioning to a higher ratio of dry food, until your dog is back to eating dry kibble.

Some dogs simply refuse to eat kibble in favor of canned food. While this can have some negative consequences, such as worse dental disease or a higher food bill, it may not be a problem to have your dog on canned food long-term. Talk to your veterinarian to see if feeding your dog an all-canned diet may be the best option for them.

While senior dogs may have lower caloric requirements than young dogs, and therefore may eat less than they used to, marked weight loss or a refusal to eat is not normal and can indicate serious underlying health conditions.

These can include, but are not limited to:

  • Dental disease
  • Pancreatitis
  • Liver disease
  • Kidney disease
  • Stomach upset (eating something they shouldn’t have or a sudden change in diet)
  • Cancer
  • Cognitive decline, mobility issues, or vision loss can also cause a dog to not eat if they are unable to find or get to their food bowl. It is important for senior dogs to have a feeding routine, that the food bowl remain in the same area of the house so that they know where to find it, and that they have a rug or yoga mat to stand on while eating to avoid slipping or having trouble standing on hard floors.

    If your senior dog has gone longer than 24 hours without eating, they should see their veterinarian for a thorough physical examination and possible diagnostics to investigate the cause of their loss of appetite.

    A young, healthy puppy shouldn’t go more than a few hours without eating.

    Small breed puppies, especially, are at a high risk of hypoglycemia (low blood sugar) and should be watched closely for signs of lethargy or collapse if they are not eating. If this happens, they should be treated on an emergency basis.

    Some puppies may not like larger kibble, as it can be hard for their puppy teeth to chew, especially if they are just transitioning to solid food. This can be remedied by mixing in water and letting it soak to create more of a porridge consistency, or the kibble can be mixed with canned food as well.

    If your puppy still will not eat, they should be seen right away by a veterinarian. If they are also lethargic, vomiting, or having diarrhea, they should be seen on an emergency basis.

    There are different types of anorexia.

    True anorexia is when your dog simply refuses to eat – this is often associated with serious illnesses. Pseudo-anorexia is another type which is when your dog is hungry and really wants to eat, goes to the food bowl, but can’t eat due to a difficulty chewing or swallowing.

    If your dog stops eating for a day or two, but is otherwise active and alert, then it’s ok to keep a close eye on them initially. You could offer them some bland home cooked food like boiled chicken and rice, which is a tasty but easily digestible diet. Try warming it up a little in the microwave, as this sometimes will entice them to eat. You could offer smaller meals more frequently. Take away any leftovers that they haven’t eaten within 15 minutes and offering again a few hours later. Avoid chopping and changing the diet and offering too many different types of food. Sometimes a quick change in food can cause an upset tummy, which may complicate matters. Be careful to avoid any toxic foods such as onions and garlic.

    If your dog is quiet, not themselves, or displaying any other symptoms like vomiting, diarrhoea, weakness or lethargy; or has not eaten at all for 2 days then you should seek veterinary attention.

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