A Shih Tzu sitting next to a full food bowl, illustrating the article's focus on feeding issues and appetite loss in this breed
8 min read
Published on November 9, 2025

What to Do If Your Shih Tzu Is Not Eating: Understanding Their Feeding Habits

Learn why your Shih Tzu is not eating and discover practical solutions for dental issues, picky eating habits, and feeding schedule problems in this complete guide.

nutritionallergiessenior dogsexercise
Share:

At a glance

  • Shih Tzus are prone to dental problems that can make eating painful, requiring regular dental care at least three times weekly
  • These dogs can be picky eaters who may refuse food due to quality issues, boredom, or changes in routine
  • Their fast metabolism and small stomachs require 2-3 small meals daily rather than one large feeding
  • Simple solutions like warming food or adding healthy toppings can often restore appetite in finicky eaters

Why your Shih Tzu might suddenly stop eating

Many Shih Tzu owners worry when their usually food-motivated companion suddenly turns their nose up at dinner. The good news is that appetite loss in these dogs often stems from manageable causes rather than serious health emergencies.

Your dog's refusal to eat typically falls into one of several categories. Sometimes the reasons are medical, sometimes behavioural, and often they're related to the specific sensitivities that make this breed unique. Understanding which category you're dealing with helps determine whether you need immediate veterinary attention or can try some at-home solutions first.

The key is recognising that Shih Tzus have particular quirks when it comes to food. They're known for being discerning eaters who notice when something changes about their meals, their environment, or their daily routine.

Dental problems that affect eating

Close-up of a Shih Tzu's mouth showing dental problems including tartar buildup and gum inflammation that can cause eating difficulties

Research tells us that these dogs are particularly prone to dental issues that can make eating uncomfortable or downright painful. Tooth decay, loose teeth, and gum infections are common problems that often go unnoticed until they significantly impact appetite.

You might notice your dog approaching their food bowl enthusiastically, then backing away after attempting to eat. Some dogs will try to eat on one side of their mouth, or they may prefer soft foods over their usual kibble. Bad breath, pawing at the face, or visible tartar buildup are other signs that dental problems could be affecting their eating habits.

Prevention makes a significant difference here. Brushing your dog's teeth at least three times a week, along with providing appropriate dental treats, helps prevent the discomfort that leads to appetite loss. If you suspect existing dental problems, a veterinary examination can identify issues that need professional treatment.

Food quality and preferences matter more than you think

Shih Tzus can be remarkably picky about their food, and they're quick to notice changes that might not bother other breeds. Expired food, a manufacturer's recipe change, or even a different batch that smells slightly different can trigger a food strike.

Check the expiration date on your dog's food and consider whether you've recently opened a new bag. Some dogs will refuse food that's been stored improperly or has lost its freshness. Even high-quality food can become unpalatable if it's been exposed to heat, humidity, or air for too long.

Boredom with the same daily meal is another common culprit. If your dog shows signs of food allergies like digestive upset or skin irritation, this could also contribute to their reluctance to eat. Adding healthy toppings like small pieces of apple or banana can make regular meals more appealing. Warming the food slightly enhances its aroma, which often encourages reluctant eaters to show interest again.

How lifestyle changes disrupt eating patterns

These dogs are surprisingly sensitive to changes in their environment and routine. Moving to a new home, changes in the household schedule, or even alterations to where and when meals are served can disrupt their appetite.

You might notice this sensitivity if you've recently moved, had house guests, changed your work schedule, or rearranged furniture. Some dogs stop eating normally when their favourite family member travels, or when there's unusual activity in the home.

The solution often involves maintaining as much routine as possible around mealtimes. Feed your dog in the same location at consistent times, using the same bowls and following the same pre-meal routine. Most dogs readjust within a few days once they feel secure in their environment again.

Understanding small breed metabolism and feeding needs

Three small portion meals in bowls with a Shih Tzu nearby, demonstrating the proper feeding schedule and portion sizes for small breed dogs with fast metabolisms

Shih Tzus have fast metabolisms and small stomachs, which means their feeding requirements differ significantly from larger breeds. They typically do better with 2-3 small meals daily rather than one or two large portions.

If you're currently feeding once or twice daily, your dog might be experiencing energy dips that affect their appetite. Their small stomach capacity means they can feel full quickly, but they also get hungry again relatively soon. This natural eating pattern explains why some dogs seem disinterested in large meals but readily accept smaller, more frequent offerings.

Appropriately sized portions matter too. A meal that seems small to you might be perfectly adequate for your dog's needs. Overfeeding at one meal can lead to disinterest in the next, creating an irregular eating pattern that concerns many owners.

When to try home solutions versus seeking veterinary care

Most appetite issues in healthy dogs resolve within 24-48 hours with simple adjustments to food presentation or routine. If your dog is otherwise acting normally, drinking water, and showing interest in treats or activities, you can often safely try home solutions first.

However, appetite loss combined with lethargy, vomiting, diarrhoea, or other changes in behaviour warrants prompt veterinary attention. Very young puppies, senior dogs, or those with existing health conditions should be evaluated sooner rather than later, as they're more vulnerable to the effects of not eating.

Trust your instincts about your dog's overall condition. A temporarily finicky eater who's otherwise bright and alert is different from one who seems unwell or uncomfortable.

Practical steps to encourage eating

Start with simple changes that often restore appetite in reluctant eaters. Warming food to room temperature or slightly above releases more aroma and makes meals more appealing. Adding a small amount of warm water or low-sodium broth can have the same effect.

Try offering food in a quiet location away from household activity and other pets. Some dogs eat better when they feel secure and undisturbed. Hand-feeding a few pieces can sometimes restart interest in the bowl.

If these approaches don't work within a day or two, consider whether recent changes in routine, food brand, or environment might be factors. Returning to previous successful feeding patterns often resolves the issue more quickly than trying multiple new approaches at once.

Complete Your Shih Tzu Health Check

Every Shih Tzu is unique. Take our health quiz to get personalised recommendations based on your Shih Tzu's specific needs.

Take Health Quiz

Frequently Asked Questions

Start by checking if your Shih Tzu's food is fresh and hasn't changed in formula. Try warming the food slightly to enhance its aroma or adding healthy toppings like small pieces of apple or banana. Ensure their feeding routine hasn't been disrupted and check for dental pain by gently examining their mouth. If your Shih Tzu continues refusing food for more than 24 hours or shows other symptoms, consult your veterinarian to rule out underlying health issues.
Yes, Shih Tzus can be particularly picky eaters due to their sensitive nature and breed characteristics. They may refuse food due to quality issues, boredom with their regular diet, or changes in routine. Their small size and fast metabolism make them more selective about what they eat. This pickiness often stems from their refined palate rather than stubbornness, so addressing food quality and presentation usually helps restore their appetite.
Shih Tzus should eat 2-3 small meals daily rather than one large feeding due to their fast metabolism and small stomachs. This feeding schedule helps maintain their energy levels throughout the day and prevents hypoglycaemia, which small breeds are prone to. Puppies may require more frequent meals, whilst adult Shih Tzus typically do well with morning, afternoon, and evening portions spaced evenly throughout the day.
Shih Tzus are particularly prone to dental issues including tooth decay, loose teeth, and infections that make eating painful. Their small mouths and crowded teeth create ideal conditions for dental problems to develop. When eating becomes uncomfortable, they'll naturally avoid food. Regular dental care, including brushing at least three times weekly and providing appropriate dental treats, is essential for preventing appetite loss related to oral pain.
Seek immediate veterinary attention if your Shih Tzu hasn't eaten for more than 24-48 hours, especially if accompanied by vomiting, diarrhoea, lethargy, or difficulty breathing. Due to their small size and fast metabolism, Shih Tzus can develop hypoglycaemia quickly. Also seek emergency care if you notice signs of severe dental pain, abdominal distension, or if your dog appears to be in distress while attempting to eat.
Veterinary consultation for appetite issues typically costs $80-150 for an initial examination. If dental problems are identified, dental cleaning may range from $400-800, whilst more complex dental procedures can cost $800-1,500. Diagnostic tests like blood work or X-rays may add $200-500. Treatment costs vary significantly by location and severity of the condition. Pet insurance may help cover unexpected veterinary expenses, so consult your veterinarian for specific cost estimates.
Maintain a consistent feeding schedule with 2-3 small meals daily and brush your Shih Tzu's teeth at least three times weekly to prevent dental issues. Keep food fresh and stored properly, and avoid sudden diet changes. Provide a quiet, comfortable eating environment and monitor their weight regularly. Establish routine dental check-ups and watch for early signs of dental discomfort. Regular grooming around the face also helps prevent food-related hygiene issues.
Once underlying causes are addressed, most Shih Tzus show improved appetite within 24-72 hours. Simple issues like food quality or routine changes often resolve within a day, whilst dental problems may take several days to a week after treatment. If medical conditions are involved, recovery time varies depending on the specific issue and treatment approach. Monitor your Shih Tzu's progress closely and consult your veterinarian if appetite doesn't improve within the expected timeframe.

Related Blog Posts