Coconut?

Why it’s fine in small amounts

Coconut is not poisonous to dogs. The ASPCA says small amounts are unlikely to cause serious harm, though fresh coconut flesh and milk may cause stomach upset, loose stools and diarrhea.

Fat is the main drawback. AKC notes that coconut is high in fat and suggests other treats for overweight dogs and dogs that need to avoid high-fat foods, and PetMD points to the saturated fat as a cause of stomach upset. Dogs with a history of pancreatitis should have only small amounts, and only after a vet's approval. AKC also flags coconut's potassium for dogs with kidney disease or electrolyte problems.

Coconut oil gets a lot of attention. AKC says the medium-chain triglycerides in it may help dogs with cognitive dysfunction or seizure disorders, but the full benefits are not known, and it describes coconut as no cure-all, with fish oil having stronger evidence for skin health.

Coconut products can contain xylitol, and the husk and shell can cause blockage, so check labels and keep the hard parts away from your dog.

How to serve it safely

Offer a few flakes or a small piece of plain, unsweetened coconut meat as a topper or treat, and take off the shell and husk first. PetMD's guide runs from about 1/8 teaspoon of meat a day for dogs up to 20 lb (9 kg), to 1/2 teaspoon for dogs 21 to 50 lb (10 to 23 kg), to 1 to 1 1/2 teaspoons for dogs over 50 lb (23 kg). Treats should stay under about 10% of daily calories.

If you use coconut oil, ask your vet how much suits your dog, because too much can cause diarrhea. Coconut water should be an occasional extra, never a replacement for fresh drinking water, and the label should be free of xylitol.

If your dog already ate it

A bit of coconut meat or a lick of coconut milk usually causes nothing more than a soft stool. Offer water and watch your dog.

Call your vet for repeated vomiting, severe diarrhea, a painful belly, loss of appetite or lethargy, which can signal pancreatitis after a high-fat helping. If your dog swallowed pieces of shell or husk, or you see gagging, retching or constipation, call your vet or an emergency clinic right away. If the product contained xylitol, call your vet, ASPCA Animal Poison Control at (888) 426-4435 or Pet Poison Helpline at (855) 764-7661 (US; fees may apply) immediately. Outside the US, call your local emergency vet. Do not make your dog vomit at home.