If this just happened · act first
Call your veterinarian now. Do not wait for a website, this one included.
Call your veterinarian or emergency clinic first
Use your own clinic or the nearest emergency animal hospital. No website replaces that call.
Consultation fees usually apply. Ask the cost when you call.
Opens ASPCA Animal Poison Control information (not free by default).
Bring the packaging or a clear photo of the product when you call.
Macadamia nuts and dogs
For households with dogs, including your dog. Not a diagnosis about your dog. If this just happened, call your vet. Do not wait for a website.
TLDR
Macadamia nuts can make dogs weak and unwell. If they may have eaten them, call your vet or an emergency clinic now. Whole nuts, cookies, trail mix, and chocolate-covered macadamias all count. Do not wait to see if weakness appears.
If exposure is possible · act first
This is not medical advice. If your dog may have eaten macadamia nuts, contact your veterinarian or an emergency animal clinic now. If you cannot reach them quickly, contact an animal poison control center.
Know the names and the traps. Whole nuts, pieces in cookies or trail mix, and mixed-nut cans all count. Chocolate-covered macadamias can also carry chocolate or sugar-free (xylitol) hazards. Those are separate packs.
What counts whole macadamia nuts · pieces and meal · macadamia in cookies and baked goods · macadamia in trail mix and mixed nuts
Also known as macadamia · macadamia nut · Macadamia integrifolia · Macadamia tetraphylla · Queensland nut · mac nut
Hides on labels as Queensland nut · mac nut · mixed nuts (when macadamias are included)
Often in bowls of mixed nuts left out; cookies and holiday baking with macadamia; trail mix and snack packs; chocolate-covered macadamias (also check chocolate and sugar-free labels)
- Do not wait to see if weakness appears.
- Do not use a nut count as a safety clearance.
Read more (not a substitute for calling)
Why science treats this as a dog hazard synthesis under review · not final show work
The expandable reasoning below is still a candidate Outside Base notebook. The seatbelt above uses established authority and stands either way.
Macadamia nuts can make dogs sick. The clinical pattern is real. The toxic principle is still unknown. That combination is the honest foundation: escalate, teach the signs, refuse invented chemistry.
- Hazard class: macadamia toxicosis reported primarily in dogs (FDA + OA review)
- Clinical pattern: weakness (often hind-limb), ataxia, and related signs after ingestion
- Mechanism: unknown (first-class darkness, not a soft-pedal)
- A safe nut count
- A molecular pathway we do not have
- Permission to wait because recovery is often temporary in reports
- Canine toxicosis hazard class (oba.macadamia.canine-toxicosis)
- Toxic principle unknown (oba.macadamia.mechanism-unknown)
- Wait because usually temporary
- Invent a mechanism to look complete
- What is the toxic principle? mechanism_unclear
- Honest owner-facing amount table? method_limited
- US FDA Animal Health Literacy as of 2023-02-28
- Cortinovis & Caloni 2016 as of 2016-03-22
Frame frm.macadamia.canine-toxicosis · pack as of 2026-08-01 · Outside Base feeder
This page is part of the household-hazards hub, the six everyday hazards every dog owner should know. The same list applies to every dog.
Sniff is a free, cited map of dog genetics and health. If you want honest answers about your own dog, you can add them to the atlas.