Is Buckwheat poisonous to dogs and cats?

Updated 2026-09-30 · 1 sources

Based on: NC State Extension Gardener Plant Toolbox

Call a vet today

Buckwheat is poisonous to dogs and cats – call your vet today for advice if your pet has eaten any of it. The fruits are listed as the poisonous part, and Fagopyrin is listed as the toxic principle.

  • Dogs Call a vet today
  • Cats Call a vet today

What to do right now

  1. Call your vet or the nearest emergency vet.
  2. Note which plant, which part, how much and when.
  3. Take a photo or a piece of the plant with you.
  4. Remove what is left and move the plant out of reach.

Don't

  • Do not make your pet vomit unless a vet tells you to.
  • Do not give any human medicine.
  • Do not leave the plant where your pet can reach it.

Why it can be dangerous

NC State Extension Gardener Plant Toolbox lists buckwheat as a problem for cats and dogs.[1]

Scientific name
Fagopyrum
Poisonous parts
fruits

What the experts say

“Problems: Contact Dermatitis, Poisonous to Humans, Problem for Cats, Problem for Dogs, Problem for Horses”

— NC State Extension Gardener Plant Toolbox [1]
If your pet is struggling to breathe, has collapsed, is having a seizure or can't stand up: go to the nearest vet now.

Not sure how serious it is?

OkPaw asks a few quick questions about your pet and tells you in 30 seconds whether it can wait. Free on Google Play for Android.

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Common questions

Is Buckwheat listed as a problem for dogs?

Yes. NC State Extension Gardener Plant Toolbox lists buckwheat as a problem for dogs.[1]

Is Buckwheat listed as a problem for cats?

Yes. NC State Extension Gardener Plant Toolbox lists buckwheat as a problem for cats.[1]

Sources

  1. NC State Extension Gardener Plant Toolbox

How this page was made: written with the help of AI from the sources below, then checked claim by claim against those sources. Urgency levels follow OkPaw’s fixed safety rules. It is guidance, not a diagnosis. How we write our pages

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