Can Dogs Eat Blueberries?

Short answer: Yes. Blueberries are safe and healthy for most dogs when fed in moderation. Here's everything you need to know about benefits, portion sizes, and risks.

Are blueberries safe for dogs?

Yes. Blueberries are non-toxic and recommended by veterinarians as a healthy, low-calorie treat. They're packed with antioxidants (anthocyanins), fiber, and vitamins C and K — all of which support immune function and overall wellness.

Health benefits

  • Antioxidants help fight free radicals and support cellular health, especially in senior dogs.
  • Fiber aids digestion and supports regular bowel movements.
  • Vitamin C supports the immune system.
  • Low calorie — about 1 calorie per berry, making them ideal training treats.
  • Hydration — blueberries are ~84% water.

How many blueberries can my dog eat?

Follow the 10% rule: treats should make up no more than 10% of your dog's daily calories. Here's a quick portion guide:

Dog sizeWeightSafe daily amount
Extra small< 5 kg1–2 berries
Small5–10 kg2–3 berries
Medium10–25 kg4–6 berries
Large25+ kg8–10 berries

How to serve blueberries

  • Fresh: Wash thoroughly. Offer whole to medium/large dogs; halve for small dogs.
  • Frozen: A great summer treat. Mash for puppies to avoid choking.
  • Mashed: Mix a small amount into food as a topper.
  • Avoid: Blueberry muffins, jam, syrup, or yogurt with added sugar or xylitol — xylitol is highly toxic to dogs.

When to be cautious

  • Choking risk for very small dogs and puppies — halve or mash.
  • Digestive upset — too many can cause diarrhea. Start with 1–2 berries.
  • Diabetic dogs — check with your vet, as blueberries contain natural sugars.
  • Allergies — rare, but watch for itching, swelling, or vomiting after the first serving.

When to call a vet

Contact your vet if your dog shows persistent vomiting, diarrhea, lethargy, or any allergic reaction after eating blueberries — especially after eating a large quantity or a product containing xylitol.

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This article is for general informational purposes only and is not a substitute for veterinary advice. Always consult your veterinarian about your pet's diet and health.