food
Apple Cider Vinegar
SAFE
Diluted apple cider vinegar is generally safe in tiny amounts, but it is not necessary for dogs and can irritate the mouth or stomach.
What to do
Discontinue if your dog shows any stomach upset.
When to contact a vet: Contact a vet if your dog drank undiluted vinegar or has ongoing vomiting.
Symptoms to look for
- mouth irritation
- stomach upset
- vomiting
- diarrhoea
Why
Apple cider vinegar is sometimes added to water or food in very small amounts. It is acidic and can irritate the mouth, throat or stomach, especially if undiluted. It may also interact with some medications. There is limited evidence for health benefits in dogs.
- Safer parts
- {"diluted apple cider vinegar"}
- Parts to avoid
- {"undiluted apple cider vinegar","large amounts"}
- Preparation
- Dilute well if used at all.
- How much matters
- A few drops in water or food occasionally.
- Severity
- Mild
Sources
- American Kennel ClubVeterinary information — Nutrition
This answer rests on a single approved source and is queued for further review.
Information reviewed against recognised veterinary and animal-safety sources. Source organisations are independent of Is It For Dogs unless otherwise stated.
Last reviewed 6 September 2026 · next review due September 2027.
Safety classifications are based on available expert and veterinary information. Individual dogs may react differently, particularly dogs with allergies, existing health conditions or specific dietary requirements.
Important: Is It For Dogs provides general information about the safety of foods, plants, drinks, ingredients and other items around dogs. Our information is based on sources we consider reliable and is intended to help dog owners make informed decisions. It is not a substitute for advice from a qualified veterinary professional. Read more
Dogs can react differently depending on their size, age, health, allergies, medications, the amount consumed and other circumstances. An item classified as Safe is not necessarily suitable for every individual dog.
If your dog has eaten something potentially poisonous or dangerous, has eaten an unknown substance, or is showing concerning symptoms, contact your veterinarian or an emergency veterinary service immediately.
Do not induce vomiting or give your dog medication unless specifically instructed to do so by a veterinary professional.