Quick answer

Our top pick is Royal Canin Shih Tzu Adult Dry Dog Food, formulated specifically for the breed’s dental and coat needs. For Shih Tzus needing large breed support, Purina Pro Plan Large Breed Adult Chicken & Rice Formula provides balanced nutrition with glucosamine. Hill’s Science Diet Large Breed Adult is another excellent choice for joint health.

What to consider for Large Breed Dog Food For Shih Tzus

Shih Tzus are a small breed, typically weighing 9 to 16 pounds. However, some individuals may be overweight or have joint issues that benefit from a large breed formula, which often includes controlled calories and joint-supporting nutrients. Large breed formulas are designed for dogs over 50 pounds, but smaller dogs can eat them if the kibble size is appropriate and calorie content is managed. Always consult your veterinarian before switching to a large breed food for a small dog.

What to look for in a dog food

Look for a statement on the label confirming the food is complete and balanced according to AAFCO for the appropriate life stage (adult or all life stages). The first ingredient should be a named meat source like chicken or lamb. Protein content should be moderate (around 22 to 26% for adults), fat around 12 to 16%, and calories around 300 to 400 kcal per cup. For large breed formulas, ensure appropriate calcium and phosphorus levels for bone health. Joint support ingredients like glucosamine and chondroitin are beneficial. Omega fatty acids support skin and coat health, important for Shih Tzus.

How we chose these picks

  • Evaluated ingredient quality and nutritional adequacy per AAFCO guidelines
  • Considered breed-specific needs such as dental health and coat support
  • Compared calorie density to prevent overfeeding in small dogs
  • Checked for inclusion of joint-supporting nutrients like glucosamine
  • Reviewed brand reputation and manufacturing standards
  • Ensured kibble size is appropriate for small mouths
  • Never ranked a product higher just because it pays a commission

What to avoid

  • Avoid foods with unnamed meat meals (e.g., “meat meal”) as the primary protein source
  • Be cautious with grain-free diets; the FDA is investigating a potential link to DCM. Grain-inclusive is generally safer unless your vet advises otherwise
  • Do not feed all-life-stages food to a large breed puppy, as calcium levels may be inappropriate
  • Avoid abrupt diet changes; transition over 7 to 10 days to prevent digestive upset

For more guides, visit our dog guides and check out dog food and dog nutrition categories.

Sources and further reading