Can Dogs Eat Blueberries?

Yes — blueberries are safe for most dogs and make a good low-calorie treat, in moderation.

Written by the PawNerdy Team · Published August 21, 2026 · Updated August 27, 2026

Yes. Blueberries are one of the best fruit treats you can give a dog. They are low in calories, small enough to use as training rewards without portion-control gymnastics, and require no preparation. There is no toxic component and no pit, skin, or rind to remove.

Why blueberries are a good choice

A single blueberry contains roughly one calorie, which makes them unusually well suited to training, where a dog might earn dozens of rewards in a session. Compare that to a commercial training treat and the caloric difference over a week is substantial.

They are also high in antioxidants, particularly anthocyanins, which produce the blue color. Antioxidants have been studied in dogs in the context of aging and cognitive function, and while you should not expect a bowl of blueberries to change your dog's health outcomes, they are a genuinely better choice than most alternatives.

Blueberries also contain fiber, vitamin C, vitamin K, and manganese.

How many is too many

Portion by size:

These are guidelines rather than limits. The practical constraint is that too much fruit fiber causes loose stools, and every dog's threshold differs.

The 10 percent rule

Whatever the fruit, treats of all kinds should make up no more than about 10 percent of a dog's daily calories. The other 90 percent should come from a complete, balanced food. This matters more than most owners realize: fruit feels healthy, so it gets handed out freely, and the calories add up quietly alongside a full bowl of kibble.

How to serve them

• Fresh, washed, whole. No preparation needed for most dogs.
• Frozen. A good hot-weather treat, and the crunch appeals to many dogs. Frozen berries are harder, so use caution with dogs that have dental disease.
• Mashed into food or a slow feeder if your dog bolts things whole.
• In a puzzle toy or frozen into plain water in an ice cube tray.

For very small dogs and puppies, cutting berries in half reduces any choking risk, though whole blueberries are small enough that this is rarely a concern.

What to avoid

The fruit itself is fine; the problems come from processed versions. Avoid blueberry muffins and baked goods, which carry sugar, fat, and sometimes xylitol. Avoid blueberry yogurt with added sugar or sweeteners. Avoid dried blueberries with added sugar, and check that dried fruit mixes contain no raisins, since grapes and raisins can cause acute kidney failure in dogs and often share a bag with other dried fruit. Avoid blueberry pie filling entirely.

Always check labels for xylitol, which is severely toxic to dogs and appears in an expanding list of products.

Dogs that need more care

Diabetic dogs should only have fruit with veterinary guidance. Dogs on a prescription diet for kidney disease, allergies, or gastrointestinal conditions should not have treats that undermine that diet. Overweight dogs benefit from blueberries as a substitute for higher-calorie treats rather than as an addition.

When to call your vet

Blueberries rarely cause problems. Contact your vet if your dog develops persistent vomiting or diarrhea after eating a large quantity, or if it shows signs of an allergic reaction such as facial swelling, hives, or itching. If your dog got into a mixed dried fruit product that may have contained raisins, call immediately rather than waiting, since that is a genuine emergency.