Cherries Are Unsafe for Dogs: What to Know
Cherries occupy an awkward middle ground in the safe-fruit list. The flesh itself is non-toxic per the ASPCA toxic-plant database, but the pits, stems, and leaves contain amygdalin which releases hydrogen cyanide when chewed. The pit also presents a serious mechanical risk: it is small, round, hard, and almost perfectly shaped to cause choking or intestinal obstruction.
The risk-reward math strongly favours skipping cherries entirely. The flesh is theoretically safe but indistinguishable from a host of safer berries, and the cost of an accident (pit swallowed, kernel chewed) is severe. This page explains the reasoning so you can make an informed call.
If Your Dog Ate Cherries With Pits
The dual risk is mechanical (choking and obstruction) and chemical (cyanide if pits chewed). Both warrant immediate evaluation.
Call now:
ASPCA: (888) 426-4435
Pet Poison Helpline: (855) 764-7661
Symptoms of cyanide poisoning include bright red gums, rapid breathing, drooling, and collapse. These are emergencies requiring immediate vet attention.
The Amygdalin and Cyanide Mechanism
Amygdalin is a cyanogenic glycoside found in the seeds of all stone fruits in the Prunus genus: cherries, peaches, plums, apricots, nectarines, almonds (the bitter variety). When the seed is chewed and the cellular structure breaks down, beta-glucosidase enzymes release hydrogen cyanide.
Cyanide is a fast-acting toxin that interferes with cellular oxygen utilisation. The clinical signs of acute cyanide poisoning include hyperventilation, dilated pupils, bright cherry-red gum colour (paradoxically, from oxygen-rich blood that cannot be used), and rapid progression to seizures and collapse.
The cyanide content of cherry pits is meaningful. Published values for sweet cherry pits range from approximately 3 mg of HCN equivalent per gram of pit. A single cherry pit weighs around 0.5g and contains approximately 1.5 mg of available HCN if fully chewed and digested.
The toxic dose of cyanide for dogs is approximately 2 mg per kg body weight. For a 10 kg dog, that is 20 mg of HCN, which corresponds to roughly 13 fully chewed cherry pits. This is implausible for a single sitting but not impossible if a dog has access to a bowl of cherries with pits and chews them.
The Mechanical Risk: Often the Bigger Concern
In practice the cyanide concern is secondary to the mechanical risk. Cherry pits are roughly the size of a peanut: small enough to swallow, large enough to lodge in the trachea of a small dog or the intestinal tract of any size dog.
The VCA Animal Hospitals foreign-body ingestion guidance notes that cherry pits are a recurring source of obstruction cases, particularly in the summer cherry season. Surgical removal is sometimes required.
A dog that swallowed one or two cherry pits whole will most likely pass them in 24-48 hours. Monitor for vomiting, decreased appetite, or abdominal pain. A dog that swallowed many pits, or a small dog that swallowed one large pit, warrants immediate veterinary evaluation including imaging to confirm the pit's location.
What About Pitted Cherries?
Pitted fresh cherry flesh is non-toxic and theoretically safe in small portions. The flesh is sweet, moderate sugar (12-13g per 100g), and palatable to most dogs.
The practical reason this site does not recommend pitted cherries as a treat is that the safer berry alternatives (blueberries, strawberries, blackberries) offer all of the same flavour and nutritional positives with none of the pit-related risk pathway. There is nothing nutritionally unique about cherry flesh that justifies the additional caution required to ensure no pits are present.
Cherry Product Specifics
- Maraschino cherries: Pitted but heavily sweetened, artificially coloured, sometimes containing xylitol in sugar-free variants. Skip entirely.
- Cherry pie filling: High added sugar; sometimes contains pits; skip.
- Dried cherries: Concentrated sugar (similar concern to raisins but cherries are not in the toxic-grape category), plus pit risk if not fully stoned. Skip.
- Cherry juice: Concentrated sugar; not appropriate for dogs.
- Cherry-flavoured yoghurt: Same xylitol concern as other flavoured yoghurts. Skip.
- Wild cherries (foraged): Same Prunus genus, same pit risk. Skip.
Safer Alternatives
If you wanted a small red sweet treat for your dog, these are the safe options:
- Strawberries: safe, low calorie, low sugar.
- Raspberries: safe with portion caps, no pit risk.
- Blueberries: safe and recommended.
- Watermelon: safe summer alternative.
Bottom Line
Cherry flesh is non-toxic but the pits, stems, and leaves carry both mechanical and cyanide risks. The risk-reward math is unfavourable: equivalent safer berries exist with no pit-related downside. Skip cherries entirely as a routine dog treat. If accidentally ingested with pits, call the ASPCA on (888) 426-4435 immediately. Monitor for symptoms of cyanide poisoning (red gums, rapid breathing, collapse) or obstruction (vomiting, reduced appetite, abdominal pain).