Updated 2026-08-07 · Source: ASPCA Animal Poison Control — People Foods to Avoid Feeding Your Pets; ASPCA Animal Poison Control — Toxic and Non-Toxic Plants database · Free · No sign-up
No — lemons and limes should not be given to dogs. If yours has already eaten some, call your vet.
If your dog may have eaten something harmful, call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435 right now — don't wait for symptoms. A consultation fee may apply to the ASPCA hotline.
Verdict for dogs
Don't feed
Severity
2 / 5 — Mild — usually stomach upset; watch them.
Safe amount
None
Category
Fruit
Source
ASPCA Animal Poison Control — People Foods to Avoid Feeding Your Pets; ASPCA Animal Poison Control — Toxic and Non-Toxic Plants database · reviewed 2026-08-07 · confidence: high
Why
Sour, acidic and heavy in the essential oils and psoralens the ASPCA flags in citrus — the peel most of all. Expect drooling, vomiting or diarrhea rather than poisoning, but there is nothing here a dog needs.
Signs to watch for if your dog has eaten lemons and limes
Vomiting
Diarrhea or loose stools
Loss of appetite
Belly discomfort or unusual tiredness
Signs vary with the amount and with the individual pet, and some appear only after a day or more. Their absence does not mean your dog is in the clear — call rather than watch.
What to do now
Don't feed it. If your dog has already eaten some, call your vet or poison control with the amount and the timing and follow their advice.
Never induce vomiting and never give any medicine unless a vet tells you to. With some substances it causes more damage than the poison. This page tells you when to get help — it never tells you how to treat at home.
Safer alternatives for dogs
Plain baby carrots or carrot sticks
Plain cooked chicken breast — no skin, no bones, no seasoning
A few blueberries or a slice of apple with the core removed
Verdicts are transcribed from the cited veterinary sources, never inferred. Where a source establishes a finding for one species only, the other species is left null and the page says to ask your vet — a dog finding is never copied onto a cat.
This page is a reference, not veterinary advice or a diagnosis. CanMyPetEat is a reference, not veterinary advice or a diagnosis. It tells you when to get help — never how to treat at home. Never induce vomiting or give any medicine unless a vet tells you to. Individual pets vary and toxicity guidance changes; your vet and the ASPCA Animal Poison Control Center are the authority.
No — lemons and limes should not be given to dogs. If yours has already eaten some, call your vet. Sour, acidic and heavy in the essential oils and psoralens the ASPCA flags in citrus — the peel most of all. Expect drooling, vomiting or diarrhea rather than poisoning, but there is nothing here a dog needs.
What happens if a dog eats lemons and limes?
Watch for: Vomiting; Diarrhea or loose stools; Loss of appetite; Belly discomfort or unusual tiredness. Signs can take hours or, for some poisons, a day or more to appear, so call your vet rather than waiting to see.
How many lemons and limes are dangerous for a dog?
The safe amount is none, as an occasional treat rather than a daily habit. Large amounts mainly cause stomach upset; if that doesn't settle within a day, call your vet.