Dog Ate Macadamia Nuts or Holiday Cookies: What to Do

Macadamias, chocolate, raisins and sugar-free sweeteners change the plan after a cookie raid. How to tell if it's the ER, a poison line or a home watch.

Quick answer: If your dog ate macadamia nuts or holiday cookies with chocolate or raisins, call a poison line or vet now, even if your dog seems fine; raisins also need in-person care now. Sugar-free cookies, or any you can't check for xylitol, mean an emergency vet now. Macadamia signs (weakness, wobbly legs, tremors, vomiting, overheating) usually start within 12 hours (Merck Veterinary Manual). Plain sugar cookies you can check usually mean mild stomach upset at most.

This article is general information, not a diagnosis. If you think your pet is in danger, go to the nearest emergency animal hospital.

Dog ate macadamia nuts: is it an emergency?

Macadamia nuts aren't safe for dogs: any macadamia eaten means a call to a poison line or vet now, because there is no number of nuts you can safely judge at home.

The Merck Veterinary Manual says macadamia nuts typically cause a nonfatal illness in dogs, but you can't tell at home what else was in the cookie, so make that call even if your dog seems fine. The same handful is a bigger dose for a small dog, and whole, baked or chocolate-covered macadamias all count.

The Merck Veterinary Manual says signs usually start within 12 hours: weakness, wobbly walking, vomiting, tremors, dullness and overheating (a high body temperature). Pet Poison Helpline adds that some dogs can't walk because of back-leg weakness, and that the nuts' high oil content may cause pancreatitis in some dogs. A dog that looks fine an hour later is not cleared.

Go to an emergency vet now if you see these signs

A dog that trembles, wobbles or drags its back legs, has a seizure, collapses, vomits more than once, vomits even once while dull, has belly pain, can't keep water down, has pale gums or feels very hot after eating macadamias or cookies needs an emergency vet now, not a video call.

• A body that feels very hot: don't give any human fever or pain medicine.
• A hunched or prayer posture, blood in the vomit or black stool.
• Any raw yeast dough eaten, retching with nothing coming up, or a swollen belly.
• A sugar-free cookie, possible xylitol, or a label or recipe you can't check, even if your dog seems fine; call a poison line on the way.

A weak or wobbly dog when nobody saw what it ate also needs an emergency vet now: the Merck Veterinary Manual lists rat bait (bromethalin) and antifreeze among look-alike poisonings; see what to do if a dog ate rat poison.

ASPCA Animal Poison Control: (888) 426-4435 (a consultation fee may apply). Pet Poison Helpline: (855) 764-7661 (a per-incident fee applies). Both poison lines take calls every day, including holidays.

Check the cookie: the ingredients that change the plan

When a dog raids a Christmas or holiday cookie tin, the ingredients decide the plan: macadamias, chocolate, raisins and sugar-free sweeteners each change what to do next, and a sugar-free cookie means an emergency vet now.

Ingredient	Main risk	Do this
Macadamias	Weak legs, tremors	Poison line or vet now
Chocolate	Heart, tremors	Poison line now
Raisins, currants	Kidney harm	Poison line, get seen now
Sugar-free or no label	Low blood sugar	ER now, call on the way
Rum, bourbon, brandy	Alcohol	Poison line or vet now
Yeast dough	Bloat, alcohol	ER now
Cookie dough, no yeast	Raw egg, add-ins	Poison line
Old or moldy	Tremors	Clinic now
Butter, lots of fat	Pancreas	Watch 4 days
Foil, tin liner	Blockage	In-person vet today
Nutmeg	Upset tummy	Watch

If more than one row fits, follow the most urgent.

The FDA says xylitol, a sugar alcohol that may also be listed as birch sugar or wood sugar, can drop a dog's blood sugar within 10 to 60 minutes, and serious effects can be delayed for up to 12 to 24 hours. Check the label for xylitol, birch sugar or wood sugar, especially on sugar-free or low-sugar baked goods. If you can't check the label or recipe, treat it as sugar-free.

Raisins or currants in cookies, fruitcake or mince pies mean a poison line now and an in-person vet now, even if your dog seems fine; the Merck Veterinary Manual says dried Zante currants count and kidney failure can follow within 24 to 72 hours.

Rum balls, bourbon balls and rum- or brandy-soaked fruitcake carry alcohol: a poison line or vet now; wobbly, trembling, collapsed or breathing slowly means an emergency vet now. Raw cookie dough without yeast doesn't make alcohol, but the ASPCA says raw eggs can carry Salmonella and E. coli, and the dough may hide chocolate, raisins or xylitol, so call a poison line.

Moldy cookies, nuts or leftovers can carry tremor-causing mold toxins, so a dog that ate them needs a clinic now (an emergency hospital if yours is closed), even with no signs.

Macadamia nut poisoning in dogs: symptoms and timeline

A dog with macadamia nut poisoning usually shows weakness, wobbly walking, vomiting, tremors or overheating within 12 hours, and most improve within 12 to 48 hours, according to the Merck Veterinary Manual, but call a poison line or vet now rather than waiting.

Time after	What you see	Do this
Right after	Often nothing	Poison line or vet now
First 12 hrs	One vomit, still bright	Call vet now
At any point	Weak, wobbly, trembling	ER now
At any point	Very hot, collapse	ER now
At any point	Vomits again, or dull	ER now
12-48 hrs	Most improve (Merck)	Follow vet's plan
After 48 hrs	Not back to normal	Get seen again

The 12-hour mark is never an all-clear: some dogs show macadamia signs later, raisins and possible xylitol need an in-person vet whatever the signs, raisin kidney signs can follow 24 to 72 hours later (Merck), and butter or fat needs the 4-day watch.

What to do in the next hour

In the first hour after a dog raids a cookie tin, move the tin, count what is missing, find the recipe or label, note your dog's weight and the time, then call a poison line or vet; for possible xylitol or any emergency sign, go to an emergency vet now and call on the way.

If a foil liner, tray or wrapper is missing, your dog needs an in-person vet today; bring the packaging. Don't make your dog vomit unless a vet or poison line tells you to; a weak or wobbly dog can inhale vomit. Don't give activated charcoal, salt or human medicines such as Pepto-Bismol, Imodium or Tums, and don't add extra food or fast your dog, unless a vet says to.

White chocolate macadamia cookies: two problems in one bite

A white chocolate macadamia nut cookie is mainly a macadamia and fat problem for a dog, so call a poison line or vet now for the macadamias and plan a 4-day watch for the fat.

White chocolate has almost none of the chocolate toxins, the Merck Veterinary Manual says, so in a white chocolate macadamia cookie the macadamias and the fat are the bigger worries; Merck adds that the fat in chocolate products may trigger pancreatitis in some animals. If you aren't sure the chips were white chocolate, treat them as regular chocolate: a poison line now, in any amount, as the dish-by-dish holiday foods chart for dogs shows. Tremors, a racing heart or a seizure mean an emergency vet now.

Plain sugar cookies, shortbread and gingerbread: when watching at home is reasonable

A plain cookie with no chocolate, raisins, currants, nuts, xylitol, alcohol or raw dough usually causes at most mild vomiting or loose stool in a dog; watch for 4 days and call a vet today at the first vomit.

That covers fresh plain sugar cookies, shortbread and gingerbread whose recipe or label you can check; if you can't, treat the cookie as sugar-free, and old or moldy cookies need a clinic now. Pet Poison Helpline says the small amount of nutmeg in a recipe is very unlikely to cause serious poisoning, though a mild stomach upset can happen.

A whole tin of buttery cookies is a fat problem: Pet Poison Helpline says fatty foods such as butter can cause pancreatitis, with vomiting 1 to 4 days later, so follow the 4-day pancreatitis watch after a dog eats fat. Vomiting more than once, belly pain, weakness or collapse means an emergency vet now. Refusing food, vomiting plus diarrhea, or a puppy that vomited, has diarrhea or won't eat means an in-person vet today. A dog that has had pancreatitis, or a Miniature Schnauzer, needs a vet call the same day, even if it seems fine. An adult dog that is still bright but vomits once, seems quieter, eats less or has only diarrhea needs a call to a vet today.

What the vet does in person

In the clinic, a vet may make your dog vomit if the cookies were eaten recently and your dog still seems normal, and may give IV fluids and supportive care if signs are severe.

In person, a vet can also take your dog's temperature and run blood tests, such as blood sugar after possible xylitol or kidney values after raisins. Pet Poison Helpline says a vet may give activated charcoal, while the Merck Veterinary Manual says its benefit after macadamias is unknown; whether to use activated charcoal is the vet's decision. A dog that isn't back to normal 48 hours after being checked, or gets worse, needs to be seen again in person.

What a RexVet video visit can and cannot do after a cookie raid

RexVet, a 501(c)(3) nonprofit online vet service, serves pets located in Florida, New York and Virginia by video visit, and it can help after a plain-cookie raid, but a video visit does not replace a poison line or an emergency vet.

In a possible poisoning, your first call goes to a poison line or an emergency vet, not to RexVet: follow the cookie table above for risky ingredients, and any emergency sign means an emergency vet now. A swallowed liner or wrapper, refusing food, vomiting plus diarrhea, or a puppy that vomited, has diarrhea or won't eat means an in-person vet today. Outside about 8 AM to 11 PM ET, use an emergency vet or a poison line.

A video visit fits a dog that ate a plain cookie whose recipe or label you can check (no chocolate, raisins, currants, nuts, xylitol or other sugar-free sweetener, alcohol or raw dough, and not old or moldy), swallowed no foil or wrapper, and is bright, eating and keeping water down. It also fits after a poison line advises a home watch, to plan what to look for; when an adult dog on the 4-day watch for plain cookies has had one vomit or one soft stool, not both, and is still bright, eating, keeping water down and not sore in the belly; when a higher-risk dog, such as one that has had pancreatitis or a Miniature Schnauzer, seems fine after a plain buttery-cookie raid; and for follow-up after an emergency visit.

In a $64.99 live video visit, a licensed RexVet vet, a veterinarian licensed in your pet's state (with your pet located there during the visit), reviews the recipe or label, what was eaten and when, and your dog's size and history. They watch your dog stand and walk, look at gums, posture, belly and energy on camera, help set up the 4-day watch, and say clearly when your dog needs to be seen in person. A video visit can't make a dog vomit, give activated charcoal, run blood tests, take a temperature or give IV fluids, and the veterinarian won't direct home vomiting over video. Holiday availability isn't confirmed, so check open slots when you book; if your dog is out of state for the holiday, use a local vet.

No prescription is promised; whether any medicine is right is the veterinarian's decision. In Florida, a prescription based only on a video visit is limited to FDA-approved animal drugs used as labeled, for up to 14 days (1 month for products labeled solely for flea and tick control), and can't be renewed without an in-person exam; human-labeled drugs, controlled drugs, and compounded antibacterial, antifungal, antiviral or antiparasitic drugs need an in-person exam first. Virginia allows the exam to be electronic, but federal rules still require an in-person exam before any vet prescribes a human or off-label drug. New York's rules for veterinary video care, including prescribing, are still unsettled, so a visit there may cover less. RexVet isn't a pharmacy: if the veterinarian prescribes and you ask RexVet to send the prescription to an outside pharmacy, a pharmacy transfer fee applies.

If your dog fits, book a live video visit.

Keep cookie tins, gift baskets and nut bowls out of reach this season

Gift tins, guests' bags and dessert tables at nose height are the easiest places for a dog to find holiday cookies, so keep them closed and up high.

Where	Check for
Gift tins	Macadamias, raisins, liners
Nut bowls	Macadamias, mold
Sugar-free treats	Xylitol, birch sugar, wood sugar
Guests' bags	Gum, mints, pills
Rum balls, fruitcake	Alcohol, raisins
Cookie dough	Raw eggs, add-ins
Dessert tables	Nose height

Pecans, walnuts and other nuts carry fat and mold risks of their own; see which nuts are risky for dogs. From Thanksgiving through New Year's, keep cookie tins in a closed cupboard.

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Frequently Asked Questions

Can dogs eat macadamia nuts?

No, and even one nut means a call to a poison line or vet now: there is no number of macadamia nuts you can safely judge at home. A nut from a cookie may also come with chocolate, raisins or xylitol. A dog that looks fine an hour later is not cleared: trembling or wobbly back legs at any point mean an emergency vet now.

How long after eating macadamia nuts will a dog get sick?

Usually within 12 hours: the Merck Veterinary Manual says signs typically start within 12 hours and generally go away within 12 to 48 hours. Don't wait for signs; call a poison line or vet as soon as you know. Wobbly back legs, trembling, repeated vomiting or a very hot body means an emergency vet now.

Can a dog die from eating macadamia nuts?

Usually not from the nuts alone: the Merck Veterinary Manual says macadamias typically cause a nonfatal illness in dogs, but you can't tell at home what else the cookie held, so call a poison line or vet now. Raisins and currants can cause kidney failure, and xylitol can drop a dog's blood sugar. A dog that is very weak, can't stand or feels very hot needs an emergency vet now.

My dog ate a chocolate chip cookie. What should I do?

Call a poison line now, whatever the amount; tremors, a racing heart or a seizure mean an emergency vet now. Have the label or recipe ready, and check for macadamias, raisins and xylitol too.

Can cats get macadamia nut poisoning?

It hasn't been reported in cats: the Merck Veterinary Manual says dogs are the only species in which signs of macadamia poisoning have been reported. That doesn't make holiday cookies safe for cats. A cat that ate cookies with chocolate, raisins or xylitol, ate a lot of butter, or seems unwell needs a call to a vet or poison line and should never be made to vomit at home.

Can an online vet help if my dog ate holiday cookies and we're in Florida, New York or Virginia?

Sometimes: a video visit fits a plain cookie with no risky ingredients, eaten by a dog that is bright, eating and keeping water down. For a pet located in Florida, New York or Virginia during the visit, a veterinarian licensed in your pet's state can review the recipe, watch your dog walk, check gums and belly on camera, set up the 4-day watch and say when your dog needs to be seen in person. Macadamias, chocolate, raisins, alcohol, old or moldy cookies or a swallowed wrapper need a poison line or an in-person vet instead (raisins need both); possible xylitol, raw yeast dough, or a weak, trembling or very hot dog needs an emergency vet now. No prescription is promised. In Florida, a video-only prescription is limited to FDA-approved animal drugs used as labeled, for up to 14 days (1 month for products labeled solely for flea and tick control), with no controlled drugs and no renewal without an in-person exam. Virginia allows an electronic exam, but federal rules still require an in-person exam before any vet prescribes a human or off-label drug, and New York's rules are still unsettled, so a visit there may cover less.