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How much black pepper is too much? My 25 kg dog accidentally ate about a teaspoon from a spilled shaker.

Dogs · Food safety

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Short answer

A teaspoon is a significant amount for a dog and is likely to cause gastrointestinal irritation. While black pepper isn't highly toxic, this quantity can lead to an upset stomach, causing symptoms like excessive drooling, nausea, vomiting, or diarrhea. The piperine compound in pepper is the irritant. For a dog his size, it's probably not a poisoning emergency, but you should monitor him closely. Offer small amounts of water and bland food like plain boiled chicken and rice once he's settled, and contact your vet if vomiting persists or he seems unusually uncomfortable.

Black pepper — Food safety facts

Feed with care · Dogs · full breakdown on the linked food page

A light sprinkle is harmless. Large amounts irritate the stomach.

Dogs and cats carry the same rating (Feed with care), so the notes below hold for either pet.

Black pepper is not poisonous to dogs, but it is easy to over-feed. Rich fat, salt or seasoning can bring on vomiting or diarrhoea within a day, and repeated large portions are a recognised trigger for pancreatitis.

If it ate some before you noticed, watch for vomiting, diarrhoea, loss of appetite, unusual tiredness or a painful, swollen abdomen over the next 24 hours. A one-off small amount in a healthy adult usually passes with water and rest; repeated exposure, a puppy or kitten, a senior, or a pet with an ongoing illness is a reason to call your vet the same day.

The full verdict, portion guidance and serving notes are collected on the Black pepper food facts page.

Open the full food page: Black pepper food facts →