Can Cats Eat Yogurt?

Conditional: Plain, unsweetened yogurt can be given to most cats in small amounts for probiotics, but avoid flavored varieties and xylitol. Know serving sizes and signs of trouble.

Conditional: Yes — plain, unsweetened yogurt can be offered to most cats in small amounts as an occasional treat and source of probiotics, but there are important caveats about lactose intolerance, flavored products, and xylitol contamination.

Quick Safety Summary

- Plain, pasteurized yogurt (especially plain Greek yogurt) is generally safe for most adult cats in small amounts and may provide probiotic benefits.

- Yogurt contains lactose (usually less than milk) so lactose-intolerant cats can still show vomiting or diarrhea if given too much.

- Never give flavored yogurts that contain sugar, chocolate, artificial sweeteners or xylitol — xylitol is an emergency toxin.

- If your cat eats a product containing xylitol, call the ASPCA Animal Poison Control at (888) 426-4435 or your veterinarian immediately.

Why people give cats yogurt

Many cat owners offer a spoonful of yogurt because it tastes good to the cat, can make a convenient delivery method for medications, and some yogurts contain live bacterial cultures (probiotics) that may help gut health. Compared with milk, yogurt often contains less lactose because bacteria ferment lactose into lactic acid; this means some lactose-intolerant animals tolerate yogurt better than milk.

Nutritional and toxicology overview

Typical nutrient profile (plain yogurt)

Nutrient values vary by product. Typical ranges per 100 g (about 3.5 oz) of plain yogurt (source: USDA FoodData Central):

• Calories: ~60–120 kcal (nonfat to full fat ranges)
• Protein: 3–10 g (Greek-style is at the higher end)
• Fat: 0–5 g
• Carbohydrate (including sugars/lactose): ~4–7 g
• Lactose content: generally lower than milk — often around 2–4% vs milk ~4.8%

Lactose and cats

Kittens produce lactase and can digest their mother’s milk. Adult cats commonly have decreased lactase activity, which means many are lactose-intolerant. Symptoms of lactose intolerance include vomiting, soft stool or diarrhea, and gas after dairy ingestion. Because yogurt’s bacteria partially digest lactose during fermentation, many cats tolerate small amounts of plain yogurt better than a comparable volume of milk — but tolerance varies by individual.

Probiotics: benefits and limits

Yogurt often contains live cultures such as Lactobacillus and Bifidobacterium species. Potential benefits for cats may include:

• Short-term support for mild diarrhea or after antibiotic therapy (adjunctive, not a substitute for veterinary care)
• Possible support for gut microbial balance

• Not all commercial yogurts carry strains that colonize the feline gut or are present at effective doses for therapeutic effect.
• Veterinary-approved, cat-specific probiotics are preferable when treating clinical gastrointestinal conditions.

Which yogurts are safest for cats?

Safe choices:

• Plain, unsweetened, pasteurized yogurt.
• Unsweetened Greek yogurt (lower lactose and higher protein).
• Yogurts labeled as containing live and active cultures.

• Flavored yogurts with fruit jams, chocolate, or high sugar.
• Yogurts containing artificial sweeteners (especially xylitol), raisins/fruit mixes with unknown ingredients, or nuts.
• Raw/unpasteurized dairy products (higher risk of foodborne pathogens).

Xylitol — the critical emergency risk

Xylitol is a sugar alcohol used as a sugar substitute in some flavored yogurts and yogurt toppings (and in many human foods). In dogs, xylitol triggers a rapid insulin release that causes life-threatening hypoglycemia and can cause liver failure; dogs are extremely sensitive. In cats, clinically documented poisonings are less common, but xylitol is considered potentially dangerous and should be strictly avoided. Always assume xylitol is an emergency if ingested by a pet.

Signs of xylitol poisoning (may appear within 30–60 minutes):

• Vomiting
• Weakness, lethargy
• Unsteady gait or collapse
• Tremors or seizures
• Hypoglycemia (low blood sugar) signs such as drooling, disorientation
• Signs of liver dysfunction may develop later

(ASPCA Animal Poison Control and local emergency vets are your primary resources for suspected xylitol exposure.)

Serving sizes: safe, conservative guidelines by weight

When you offer yogurt, use very small amounts and watch your cat for 24–48 hours for any digestive upset. These conservative recommendations are for plain, unsweetened yogurt (not flavored or containing xylitol).

• Cats up to 3 kg (6–7 lb): 1 teaspoon (approx. 5 ml) as an occasional treat.
• Cats 3–5 kg (7–11 lb): up to 1 tablespoon (approx. 15 ml) once or twice per week.
• Cats over 5 kg (>11 lb): up to 2 tablespoons (approx. 30 ml) occasionally.

Calorie example: 1 tablespoon (15 ml) of plain low-fat yogurt is roughly 9–12 kcal — a small fraction of a typical adult cat’s daily energy needs (approx. 180–300 kcal depending on size and activity).

When to say no (contraindications)

• Your cat has known lactose intolerance with prior dairy-related diarrhea or vomiting.
• The yogurt contains sugar, chocolate, fruit chunks, raisins, or xylitol.
• Your cat is overweight, diabetic, or on a calorie-restricted diet — extra calories and sugars may be undesirable.
• Your cat is immunocompromised — live cultures theoretically carry a tiny risk of bacterial translocation in severely ill or immunosuppressed animals; consult your vet.

Practical tips for offering yogurt safely

• Choose plain, unsweetened, pasteurized yogurt or plain Greek yogurt.
• Start with a microscopic taste (clean fingertip) and wait 24–48 hours to watch for adverse effects.
• Use yogurt as an occasional treat, not a dietary staple.
• If you need probiotic therapy for diarrhea, ask your veterinarian for cat-specific probiotic products and dosing guidance.
• Always check ingredient lists for xylitol and other sweeteners.

If your cat gets sick after eating yogurt

• Mild gastrointestinal upset (loose stool, occasional vomiting): withhold treats/people food for 12–24 hours, offer small amounts of water, and monitor. If symptoms persist beyond 24–48 hours or are severe, contact your veterinarian.
• Signs of severe illness (repeated vomiting, severe diarrhea, collapse, tremors, seizures): seek emergency veterinary care immediately.
• If xylitol ingestion is suspected: call ASPCA Animal Poison Control at (888) 426-4435 and your veterinarian right away.

Sources and further reading

• ASPCA Animal Poison Control (xylitol and general toxicology) — https://www.aspca.org/pet-care/animal-poison-control
• American Veterinary Medical Association (AVMA) — resources on probiotics and pet nutrition — https://www.avma.org
• Merck Veterinary Manual — information on gastrointestinal disease and probiotics — https://www.merckvetmanual.com
• USDA FoodData Central — nutrient profiles for yogurt products — https://fdc.nal.usda.gov

Key Takeaways

• Plain, pasteurized yogurt can be given to most cats in very small amounts and may supply probiotics and lower lactose than milk.
• Start with tiny tastes and follow conservative serving sizes by weight: ~1 tsp for small cats, up to 1–2 tbsp for larger cats, occasional only.
• Avoid flavored yogurts, added sugars and especially xylitol — xylitol is an emergency toxin. If xylitol is ingested call ASPCA Animal Poison Control at (888) 426-4435 immediately.
• For therapeutic probiotic use (for diarrhea or after antibiotics) consult your veterinarian — they can recommend product, strain and dose appropriate for cats.

Frequently Asked Questions