Maltese Nutrition Guide — Tiny Breed, Big Nutritional Needs

The Maltese is a toy breed that rarely exceeds 4 kg, yet their nutritional requirements are anything but small. Pound for pound, tiny dogs have higher metabolic rates and faster energy turnover than large breeds, which means feeding mistakes have outsized consequences. A missed meal that a Labrador shrugs off can send a Maltese puppy into a medical emergency. Understanding the specific nutritional landscape of this breed is essential for keeping them healthy.

Hypoglycemia: The Hidden Danger in Tiny Puppies

Hypoglycemia — dangerously low blood sugar — is the most acute nutritional risk for Maltese puppies and small adults. Toy breed puppies have very limited glycogen (stored sugar) reserves in their liver and muscles, combined with a high metabolic rate that burns through those reserves quickly. Skipping a single meal, excessive excitement, cold temperatures, or even a stressful car ride can trigger a hypoglycemic episode.

Symptoms of hypoglycemia in a Maltese:

• Trembling or shaking that is not related to cold
• Lethargy or weakness — a suddenly quiet, limp Maltese is a red flag
• Disorientation or stumbling as blood sugar drops further
• Seizures or collapse in severe cases — this is a veterinary emergency

Dental Disease: The Breed's Biggest Chronic Problem

Maltese have one of the highest rates of dental disease among all dog breeds. By age 3, the vast majority of Maltese will have some degree of periodontal disease. Their small jaws crowd teeth together, creating tight spaces where plaque and bacteria accumulate rapidly. Toy breeds also tend to retain baby teeth alongside adult teeth, further compounding the problem.

Why does nutrition matter for dental health?

• Kibble size and texture: Small-breed kibble that requires chewing (rather than swallowing whole) provides mechanical cleaning of tooth surfaces. Some dental-specific formulas have a sponge-like texture that wraps around the tooth during chewing
• Avoid excessive soft food: While wet food has benefits (higher moisture, often more palatable), feeding exclusively soft food accelerates plaque accumulation because there is no abrasive cleaning action
• Calcium and phosphorus: Adequate mineral intake supports tooth enamel strength and jawbone density. Ensure the food meets AAFCO or FEDIAF standards for these minerals
• Avoid sugary treats: Some commercial dog treats contain sugar or starchy fillers that feed oral bacteria. Read ingredients carefully

Diet alone cannot prevent dental disease in Maltese — daily tooth brushing with a canine toothpaste is the gold standard. However, nutrition can slow the progression and support oral health between veterinary dental cleanings, which most Maltese will need annually.

Tear Staining: The Diet Connection

Those rusty-brown streaks below a Maltese's eyes are one of the breed's most common cosmetic complaints. Tear staining (epiphora) occurs when tears overflow the eyelid and oxidize on the white fur, creating dark discoloration. While the primary causes are anatomical (shallow eye sockets, blocked tear ducts, excessive tear production), diet can meaningfully influence the severity of staining.

Dietary factors that affect tear staining:

• Food dyes and artificial additives: Red and brown food dyes can intensify staining. Choose a food with no artificial colors — the color of the kibble should not matter to your dog
• Iron and mineral content: Excessive iron in food or water can darken tears. Filtered or distilled water sometimes reduces staining in sensitive dogs
• Food allergies: Allergic reactions increase tear production, worsening overflow staining. If staining appeared or worsened after a food change, consider an elimination diet
• Beetroot and beet pulp: While beet pulp is a common and beneficial fiber source, some Maltese owners report increased staining with beet-containing foods. The evidence is anecdotal, but worth testing if staining is severe
• Probiotics: Some owners and veterinarians report that probiotic supplementation reduces tear staining over time, possibly by modifying the bacterial composition of tears

Liver Shunt: A Breed Predisposition

Congenital portosystemic shunt (liver shunt) is a condition where blood bypasses the liver through an abnormal vessel, meaning toxins that should be filtered by the liver circulate throughout the body. Maltese have a higher incidence of liver shunts than most breeds, with some studies estimating the condition affects 2–3% of the breed.

Signs of liver shunt often appear in puppyhood or young adulthood and include stunted growth, poor appetite, vomiting, disorientation after meals, and bladder stones. The condition is diagnosed through blood work and imaging and is often correctable with surgery.

White Coat Nutrition and the Picky Eater Problem

The Maltese's pure white, single-layer coat is one of the breed's most striking features. Maintaining coat quality requires adequate nutrition, particularly:

• Omega-3 and omega-6 fatty acids: The foundation of coat health. A proper ratio (5:1 to 10:1 omega-6 to omega-3) supports a silky, lustrous coat and reduces dry, brittle hair. Fish oil supplementation (200–400 mg EPA+DHA daily) is beneficial for most Maltese
• Biotin (vitamin B7): Supports hair growth and strength. Most quality dog foods contain adequate biotin, but supplementation may help dogs with thin or dull coats
• Zinc: Deficiency causes dull, dry coat and hair loss. Toy breeds occasionally develop zinc-responsive dermatosis
• Quality protein (28–32% dry matter): Hair is primarily made of keratin, a protein. Inadequate protein intake leads to thin, slow-growing coat

Maltese are notoriously picky eaters. This is partly behavioral (they learn that refusing food leads to more appealing options being offered) and partly physiological (their small stomachs fill quickly, and they may genuinely not be hungry). Strategies for picky Maltese:

• Establish meal times: Offer food for 15–20 minutes, then remove it regardless of how much was eaten. Do not offer alternatives. Most healthy Maltese will eat within 2–3 days of consistent meal timing
• Warm the food slightly: Warming food to body temperature increases aroma, which stimulates appetite
• Mix kibble with a small amount of wet food: The moisture and smell of wet food can entice reluctant eaters while the kibble provides dental benefits
• Rule out medical causes: A Maltese that suddenly becomes a picky eater after previously eating well should be examined for dental pain, nausea, or other medical issues