Hazelnuts aren't toxic to dogs, but they're not a good idea: they're a choking and obstruction hazard (especially for small dogs), high in fat that can upset digestion, and often coated in chocolate or seasonings that ARE dangerous. One plain hazelnut is rarely a problem; a handful, or anything chocolate-covered, warrants a call to your vet.
- Plain hazelnuts: not toxic, but choking/obstruction risk + high fat
- Chocolate-covered hazelnuts are a real emergency - chocolate is toxic to dogs
- Small dogs face the highest obstruction risk
- Watch for vomiting, straining, or lethargy after a large amount
Can Dogs Eat Hazelnuts? What Pet Owners Need to Know
Hazelnuts are a tasty snack — and if you've ever dropped one and watched your dog snap it up, you're probably wondering if it's a problem. The short answer: plain hazelnuts are not toxic to dogs, but there are enough practical concerns that they're generally not recommended as a dog treat.
Are Hazelnuts Toxic to Dogs?
Plain, unflavored hazelnuts are not considered toxic to dogs. They do not contain the compounds found in truly dangerous nuts like macadamia nuts (which are highly toxic to dogs) or black walnuts.
However, "not toxic" doesn't mean "safe to eat freely." Several practical concerns make hazelnuts a poor choice for dogs.
Risks of Hazelnuts for Dogs
Choking and Intestinal Blockage
Hazelnuts are roughly the right size to be a choking hazard for small to medium dogs, and could potentially cause an intestinal obstruction if swallowed whole by a smaller dog. Whole hazelnuts should never be given to small breeds.
High Fat Content
Like most nuts, hazelnuts are very high in fat — around 17 grams of fat per ounce. While these are largely healthy unsaturated fats, high-fat foods can trigger pancreatitis in dogs, particularly breeds that are prone to it (Miniature Schnauzers, Yorkshire Terriers, and Cocker Spaniels, among others). Dogs with a history of pancreatitis should never eat hazelnuts.
Digestive Upset
Even in dogs without a history of pancreatitis, a few hazelnuts can cause vomiting, diarrhea, or gas — especially in dogs with sensitive stomachs.
Flavored and Salted Varieties
Flavored hazelnuts — salted, chocolate-covered, honey-roasted — are even more problematic. Chocolate is toxic to dogs; excess salt causes sodium toxicity; xylitol (an artificial sweetener sometimes found in flavored nut products) is extremely dangerous to dogs.
What Nuts Are Safe for Dogs?
Most nuts should be given very sparingly if at all. The safest options in small amounts are:
- Plain peanuts (unsalted, no shells) — technically a legume, not a nut; one of the safest options
- Plain cashews (1–2 max, unsalted) — safe in tiny amounts
Never give dogs: macadamia nuts (highly toxic), black walnuts, pecans, pistachios, or flavored/salted nuts of any kind.
Supporting Your Dog's Wellness Naturally
There are better ways to give your dog a nutritional boost than hazelnuts. At VetCBD Hemp, everything we offer is formulated by Dr. Tim Shu, DVM to genuinely support your dog's health — with third-party tested, veterinarian-designed products for dogs of all ages and sizes.
Explore our CBD tinctures for dogs, review our lab test results, or book a free vet consultation to discuss your dog's wellness needs.
Frequently Asked Questions
My dog ate a hazelnut — should I be worried?
A single plain hazelnut is unlikely to cause serious harm in a healthy adult dog. Monitor for vomiting, diarrhea, or signs of choking. If your dog ate a large number, or if the hazelnuts were salted, chocolate-covered, or flavored, contact your veterinarian.
Can dogs eat Nutella?
No. Nutella contains chocolate and potentially palm oil and high sugar — none of which are appropriate for dogs. Even small amounts of chocolate can cause vomiting, diarrhea, and in larger quantities, serious cardiac and neurological effects. Keep Nutella strictly away from dogs.
Are hazelnuts safe for cats?
Cats are obligate carnivores with limited ability to digest plant fats. Hazelnuts offer no nutritional benefit to cats and may cause digestive upset. They're best avoided for cats as well.
Treats are only part of the picture when it comes to your dog's digestion. Our veterinarian-formulated CBD tincture is designed to help maintain normal GI health alongside a balanced diet — see the usage guide by weight to learn how pet parents dose it.
Common questions
My dog ate a hazelnut - should I worry?
One plain hazelnut rarely causes trouble in a medium or large dog. Watch small dogs for signs of obstruction (vomiting, straining, loss of appetite). If the nuts were chocolate-covered or your dog ate many, call your veterinarian.
Which nuts are dangerous for dogs?
Macadamia nuts are outright toxic. Black walnuts and moldy nuts of any kind are dangerous. Most other nuts are 'not toxic but not worth it' - high fat, choking risk, and frequent seasonings or chocolate coatings.
What's a safer crunchy treat?
Plain carrot sticks, green beans, or dog-formulated chews give the crunch without the fat and obstruction risk.
