Best Dog Food for Shih Tzus: 6 Top Picks (2026)

Finding the best dog food for Shih Tzus is not quite the same as picking any small-breed kibble off the shelf. These little dogs, usually weighing between 9 and 16 pounds as adults, combine a flat face and a short muzzle with a long, silky coat, a famously picky streak, and a stomach that can be surprisingly sensitive. The wrong kibble can mean dropped pieces all over the floor, a dull coat, itchy skin, or loose stools — while the right one makes mealtimes easier and keeps that trademark Shih Tzu coat looking its best.

This guide covers what actually matters for Shih Tzus: kibble size and shape for a brachycephalic jaw, skin and coat support, digestibility, calorie control for a breed that gains weight easily, and honest value. We compare six real, widely sold US products, explain who each one suits best, and finish with a buying guide so you can judge any food beyond this list. Picks are based on ingredient analysis, brand reputation, and owner reviews — not on laboratory testing by this site.

Key Takeaways

• Shih Tzus need small, easy-to-pick-up kibble: their short muzzle and underbite make large, round kibble hard to eat.
• Skin and coat support matters more than for most breeds — look for omega-3 and omega-6 fatty acids, vitamin E, and biotin.
• Highly digestible ingredients and moderate fiber help reduce stool odor and loose stools, a common Shih Tzu complaint.
• Measure portions carefully: Shih Tzus gain weight easily, and even small treats add up fast for a 10-pound dog.
• A breed-specific formula is a strong starting point, but a good small-breed food can work just as well — especially for picky eaters or sensitive stomachs.

Best Dog Food for Shih Tzus at a Glance

Product	Best For	Key Feature
Royal Canin Shih Tzu Adult Dry Dog Food	Best overall	Breed-specific kibble shaped for a short muzzle and underbite
Hill’s Science Diet Small & Mini Adult 1-6 Chicken & Brown Rice	Best value small-breed pick	Highly digestible ingredients with omega-6s and vitamin E
Blue Buffalo Life Protection Formula Small Breed Chicken & Brown Rice	Best real-meat-first budget pick	Real chicken first, with antioxidant LifeSource Bits
Purina Pro Plan Small Breed Shredded Blend Chicken & Rice	Best for picky eaters	Crunchy kibble plus tender shredded pieces, with live probiotics
Wellness CORE Grain-Free Small Breed	Best grain-free, high-protein pick	Deboned turkey first, small-breed kibble, omega support
Royal Canin Shih Tzu Adult Loaf in Sauce	Best wet food / topper	Soft loaf texture that is easy to eat, with skin and heart support

Royal Canin Shih Tzu Adult Dry Dog Food

If you want the simplest answer to “what should I feed my Shih Tzu,” this is it. Royal Canin Shih Tzu Adult Dry Dog Food is formulated for purebred Shih Tzus 10 months and older, and it is the only pick here designed around this breed’s exact mouth shape. Its exclusive kibble is shaped to be easier for a Shih Tzu to pick up and chew despite a short muzzle and underbite — the detail that most generic small-breed foods miss, and the reason many owners switch to it after watching their dog push ordinary kibble around the bowl.

The nutrition is built around the breed’s other weak spots. An exclusive complex of nutrients including EPA, DHA, and vitamin A supports skin health, while omega-3 and omega-6 fatty acids plus biotin help maintain that long, soft coat. Highly digestible proteins, precise fiber, and high-quality carbohydrate sources are included to reduce stool amount and odor, which owners of indoor small dogs notice quickly. The guaranteed analysis lists 22% minimum crude protein and 18% minimum crude fat, with ingredients led by brewers rice, brown rice, and chicken by-product meal. That protein level is moderate rather than high, which suits many less active adult Shih Tzus, though very active dogs may do better on a higher-protein option below.

The honest trade-offs are price and ingredient philosophy. This is a premium-priced food, and some owners prefer a named meat as the first ingredient rather than rice. It is also made for purebred Shih Tzus, so if your dog is a Shih Tzu mix, a general small-breed formula may fit just as well. Still, for a purebred adult Shih Tzu with no diagnosed food allergy, this is the most tailored starting point available in the US, sold in 2.5 lb and 10 lb bags.

Hill’s Science Diet Small & Mini Adult 1-6 Chicken & Brown Rice

Hill’s Science Diet Small & Mini Adult 1-6 is the best all-round small-breed alternative if you want proven digestibility at a lower price than a breed-specific bag. It is made with highly digestible ingredients that are easy on a small dog’s stomach, provides high-quality protein to maintain lean muscle, and includes omega-6 fatty acids and vitamin E for skin and coat health. It is made in the USA with global ingredients, and the kibble is sized for smaller jaws.

What makes it a good Shih Tzu fit is its balance. It does not chase extreme protein levels or exotic ingredients; instead it offers steady, gentle nutrition that suits dogs with mildly sensitive stomachs and owners who want a food they can buy almost anywhere. The chicken and brown rice recipe is familiar and palatable for many dogs, and the small kibble size helps flat-faced dogs eat without the frustration of oversized pieces. For a Shih Tzu that eats well, holds a healthy weight, and has no specific allergy, this is often all the food they need — and the 4.5 lb bag keeps it fresh for a single small dog.

Watch the portion, not the brand. Small-breed foods are calorie-dense because small dogs burn energy quickly, so the feeding guide on the bag is a starting point, not a rule. Weigh the food with a cup or scale, split it into two meals, and adjust up or down based on body condition rather than appetite: most Shih Tzus will happily eat more than they need.

Blue Buffalo Life Protection Formula Small Breed Chicken & Brown Rice

Blue Buffalo Life Protection Formula Small Breed leads with real chicken as the first ingredient, followed by wholesome whole grains, garden vegetables, and fruit. It is specially formulated for small breed dogs, with increased protein and carbohydrate levels to meet the higher energy needs of smaller dogs, and kibble sized for smaller jaws. Its signature LifeSource Bits are a precise blend of antioxidants, vitamins, and minerals selected to support immune health.

For Shih Tzu owners, the appeal is straightforward: a meat-first recipe, no chicken or poultry by-product meals, and no corn, wheat, soy, artificial flavors, or preservatives, usually at a lower price than breed-specific foods. The 5 lb trial-size bag is also a sensible way to test whether your dog actually likes a new food before committing to a large bag — a real consideration with a picky breed. Many owners report good coat condition on this formula, helped by the overall nutrient balance rather than any single ingredient.

The caveat is the same as with any chicken-based food: if your Shih Tzu has a suspected chicken sensitivity, this is not the pick to test first. It also contains grains, which is fine for most dogs — grains are not inherently harmful — but owners specifically seeking a grain-free diet should look at the Wellness CORE pick below instead. For a healthy adult Shih Tzu on a budget, though, this is one of the strongest value choices in US pet stores.

Purina Pro Plan Small Breed Shredded Blend Chicken & Rice

Shih Tzus are famous for turning away from a bowl they ate happily yesterday, and texture is often the real problem, not taste. Purina Pro Plan Small Breed Shredded Blend tackles that with a mix of crunchy small kibble and tender shredded pieces, giving picky dogs variety in every bite without needing a topper. Real chicken is the first ingredient, and an optimal protein-to-fat ratio helps maintain ideal body condition in dogs under 20 pounds.

It also has one of the strongest digestive profiles here. Guaranteed live probiotics (Bacillus coagulans) support digestive and immune health, while natural prebiotic fiber from wheat bran feeds gut bacteria for steadier digestion. Vitamin A and linoleic acid, an omega-6 fatty acid, help keep the coat shiny and skin healthy. The formula is manufactured in Purina-owned US facilities and is complete and balanced for adult maintenance under AAFCO profiles, with a guaranteed analysis of 29% minimum protein and 17% minimum fat.

This is the pick to try when your Shih Tzu eats a new food for three days and then goes on strike. The shredded texture often rekindles interest, and the probiotics are a genuine bonus for dogs with mildly unsettled stomachs. Just keep treats to a minimum during the transition — a dog that fills up on treats has little reason to finish kibble, however good the texture is.

Wellness CORE Grain-Free Small Breed

Wellness CORE Grain-Free Small Breed is built on a different philosophy: high protein, grain-free, and meat-led. Deboned turkey is the first ingredient, followed by turkey meal and chicken meal, with salmon oil and flaxseed for omega support, and a smaller kibble sized for adult small breeds. It also includes glucosamine and chondroitin for joint support and probiotics for digestion, which matter for a breed prone to putting on weight and stressing small joints.

This is the right choice for an active Shih Tzu, a dog that does well on higher-protein diets, or an owner who wants to avoid grains without going to a raw diet. The turkey-led recipe also gives owners an alternative protein base if chicken-heavy foods have not agreed with their dog, but chicken meal still appears in the ingredient list, so it is not a chicken-free food. The protein level is noticeably higher than the breed-specific Royal Canin formula, so it suits the dog that needs more protein and is not limited to a lower-protein diet by a veterinarian. Check the calorie density and portion carefully for Shih Tzus that are less active, to avoid unwanted weight gain.

Higher protein also means higher calories per cup, so portion control matters even more here. Measure carefully, and do not assume a grain-free label means a dog will lose weight: weight loss comes from total calories, not from removing grains. If your Shih Tzu is already overweight, a weight-management formula or a vet-guided portion plan will help more than simply switching to grain-free.

Royal Canin Shih Tzu Adult Loaf in Sauce

Some Shih Tzus simply eat wet food better, especially older dogs, dogs with dental problems, or dogs that have lost interest in dry kibble. Royal Canin Shih Tzu Adult Loaf in Sauce is the wet counterpart to the breed-specific dry food, formulated for purebred Shih Tzus 10 months and older. Its soft, paté-like loaf texture is easy to eat with a flat face, and it can be fed alone or mixed with the dry formula.

The nutrition mirrors the dry food’s priorities: EPA, DHA, and vitamin A support skin and a healthy coat, while targeted levels of sodium, taurine, and L-carnitine support heart health. Sold in 3 oz cans, it is easy to portion for a small dog and avoids the waste of opening a large can for a 10-pound eater. As a topper, a spoonful over dry kibble often solves pickiness without switching the whole diet — a cheaper and gentler fix than changing foods every few weeks.

Wet food alone has two downsides to plan for: it does less for dental health than crunchy kibble, and it costs more per calorie. A mixed approach — dry food as the base, wet food as a topper or occasional meal — gives most Shih Tzus the best of both. If you do feed wet food exclusively, keep up with dental care: regular brushing and vet dental checks matter even more for this breed, which is prone to tartar build-up.

Buying Guide: What to Look For in Shih Tzu Food

Start with the mouth. A Shih Tzu’s brachycephalic jaw — short muzzle, often with an underbite — means kibble shape and size are not cosmetic details. Small, flat, or specially shaped pieces that a dog can actually pick up and chew will reduce dropped food, frustration, and gulping. If your dog regularly scatters kibble or swallows pieces whole, try a smaller kibble before blaming the recipe.

Next, check the protein source and level. Adult maintenance foods generally work well around 22–30% protein, with a named animal protein — chicken, turkey, lamb, salmon, or a named meal — among the first ingredients. Higher protein is not automatically better: it helps active dogs build and maintain muscle, but sedentary Shih Tzus on very high-protein, high-fat foods can gain weight quickly. Look for an AAFCO statement on the bag confirming the food is complete and balanced for adult maintenance (or for all life stages if you feed a household with different ages).

For coat and skin, look for omega-3 and omega-6 fatty acids from fish oil, flaxseed, or similar sources, plus vitamin E and biotin. These nutrients support the long coat Shih Tzus are known for, but they are not a cure for allergies: persistent itching, red ears, or hot spots deserve a vet visit, not just a new bag. For digestion, highly digestible proteins, moderate fiber from sources like beet pulp or prebiotics, and live probiotics all help — and a consistent feeding routine helps as much as any ingredient.

Finally, be honest about calories. A typical adult Shih Tzu needs roughly half to one cup of dry food per day, split into two meals, but the exact amount depends on weight, age, and activity. The bag’s guide assumes an average dog; your dog’s waistline is the better guide. You should be able to feel ribs under a thin fat layer without seeing them prominently, and your dog should have a visible waist from above. If you cannot feel ribs easily, it is time to cut portions — and treats — before switching brands.

What to Avoid

Avoid foods that rely on vague ingredients: “meat meal,” “animal fat,” or “poultry by-product” without a named species tells you little about quality. Unspecified fillers, artificial colors, and heavy use of added sugars are also poor signs, though a food is not bad simply because it contains grains — corn, rice, and barley are digestible energy sources for most dogs, and grain-free is only necessary if your dog has a diagnosed grain issue.

Avoid constantly switching foods. Shih Tzus get blamed for pickiness when the real problem is an owner who changes food every time the dog skips a meal. A healthy dog that skips one meal is usually fine; offer the same food again at the next mealtime rather than opening a new bag. Any genuine diet change should be gradual, over 7–10 days, mixing increasing amounts of the new food with the old to avoid stomach upset.

Avoid overfeeding treats and table scraps, which are the fastest route to weight gain in a small breed. Treats should stay under 10% of daily calories, and fatty or seasoned human food can upset a sensitive stomach quickly. Also avoid raw diets unless you have researched safe handling and balanced formulation thoroughly: they carry hygiene risks and are easy to get nutritionally wrong for a small dog.

This guide is for information only — check with your vet for your dog’s specific needs, especially if your Shih Tzu has allergies, chronic digestive problems, kidney issues, or is significantly overweight.

How to Switch Foods Without Upsetting a Shih Tzu Stomach

Even the best food can cause loose stools if introduced too fast, and Shih Tzus are less forgiving than many breeds. Mix about 25% new food with 75% old food for two to three days, then move to a 50/50 mix, then 75% new, then fully new over 7–10 days. If stools loosen, hold at the current ratio for a few extra days before moving on. Keep treats, toppers, and chews consistent during the switch so you can tell whether the new food itself is the problem.

If your dog refuses the new food outright, try warming wet food slightly, adding a spoonful of warm water to kibble, or using the new food as training treats first. Do not leave uneaten wet food out for hours, and do not add rich toppers like cheese or gravy every meal — that trains a dog to wait for something better. Patience for a week usually beats a cupboard full of half-eaten bags.

Conclusion: Our Recommendation

For most adult Shih Tzus, Royal Canin Shih Tzu Adult Dry Dog Food is the best starting point: it is the only formula here shaped for their mouth, with skin, coat, and stool support built in. If your dog is a mix, if you want better value, or if your Shih Tzu simply prefers a different taste, Hill’s Science Diet Small & Mini and Blue Buffalo Life Protection Formula Small Breed are excellent small-breed alternatives that cover the same basics. For picky eaters, try Purina Pro Plan Shredded Blend or a spoonful of the Royal Canin Loaf in Sauce as a topper before switching diets entirely.

Whatever you choose, judge it the same way over the next four to six weeks: is your Shih Tzu eating eagerly, holding a healthy weight, producing firm stools, and keeping a soft, shiny coat? If the answer is yes, you have found your food — and the best thing you can do is stick with it. For more small-breed guidance, see our guides to best dog food for small breeds, best puppy food for small breeds, best dog food for French Bulldogs, and best dog food for Bulldogs.

For an older Shih Tzu, choose the best senior shih tzu food for age-appropriate nutrition and joint support.

Food, Teeth and Tear Stains: What Diet Can (and Can’t) Do

Shih Tzus are prone to dental trouble — small, crowded mouths collect tartar fast — and food can help a little, but it cannot replace dental care. Crunchy kibble gives teeth more friction than soft food, so a dog that eats mostly wet food will usually need more attention to its teeth, not less. Dental chews can help, but count them inside the daily calories: for a 10-pound dog, one large chew can be a real share of the day’s food. Brushing, and vet dental checks when tartar builds up, are still the things that protect teeth — no kibble does that job on its own. If your Shih Tzu suddenly drops kibble, eats slowly, or paws at its mouth, that is a dental problem to have checked, not a reason to switch foods.

Tear stains are different again. The brown staining under a Shih Tzu’s eyes is usually down to the shape of the face, watery eyes, and how the fur holds moisture — not to a missing nutrient — so no food reliably fixes it. Keeping the face clean and dry after meals, trimming the fur around the eyes, and wiping the area gently each day do more than any special diet. If the staining appears suddenly, the eyes look sore or cloudy, or the discharge changes colour, that is a vet question, not a food question. Judge a food by what it can honestly change — eager eating, firm stools, a healthy weight, and a soft coat — and do not buy a new bag for a promise about stains.

Will a special food fix my Shih Tzu’s tear stains?

No food reliably fixes tear stains. The staining usually comes from the flat face, watery eyes, and damp fur — not from a missing nutrient. Keep the face clean and dry after meals and trim the fur around the eyes; if the staining appears suddenly or the eyes look sore, ask your vet rather than changing foods.

How can food help my Shih Tzu’s teeth?

Crunchy kibble gives teeth more friction than wet food, and dental chews can help — but count chews inside the daily calories, since one chew is a real share of a 10-pound dog’s food. Food alone cannot prevent tartar: regular brushing and vet dental checks are still needed, and a dog that suddenly drops kibble or eats slowly should have its teeth checked.