Can Cats Eat Macadamia Nuts?
No — the distinctive macadamia syndrome has not been reported in cats, but the high fat content plus choking and obstruction risks mean cats should not be given macadamias.
Last reviewed: July 24, 2026
What to know
The hind-leg weakness seen in dogs has not been demonstrated in cats, and cats are indifferent to nuts anyway. Macadamias are still very fatty: they can cause vomiting, diarrhea, and pancreatitis. A whole nut can choke a small jaw or block the intestine, and salted or coated products add salt and chocolate risks.
Watch for these signs
- Vomiting, diarrhea
- Lethargy
- Poor appetite, belly pain
If you notice any of these, contact a veterinarian without waiting.
Frequently asked questions
My cat ate one macadamia — should I panic?
A single nut usually passes with mild digestive upset. Contact your veterinarian if you see gagging, repeated vomiting, lethargy, or loss of appetite.
Which nuts are okay for cats?
None are necessary. Cats are obligate carnivores; nuts add no nutrition while bringing fat and obstruction risks.
Related answers
Sources
This guide is based on publications from the following veterinary bodies. Where sources differ, we take the more cautious position; the final decision is always your veterinarian's.