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Can cats eat macadamia nuts?

Avoid

Proven toxic in dogs, unknown in cats, and very fatty — skip it.

Don't.

Why

Macadamias cause weakness, tremors and fever in dogs. Data in cats are scarce, so the risk can't be ruled out, and nuts are fatty enough to upset the gut.

If your cat has a condition

  • Kidney disease Avoid No specific data — follow the overall verdict.
  • Diabetes Avoid No specific data — follow the overall verdict.
  • Heart disease (HCM) Avoid No specific data — follow the overall verdict.
  • Urinary stones Avoid No specific stone concern known — water intake matters more.
SourcesReviewed 2026-10-24