My dog ate windfall persimmons in the yard. What now?

Count on the fruit having been unripe, which is the high-tannin form, and assume seeds and calyxes went down with it. Call your veterinarian, and watch for vomiting, loss of appetite, constipation or weight loss over the following weeks, not just the next day.

Is a bite of ripe Fuyu persimmon safe?

A small piece of fully ripe, peeled, deseeded flesh is generally tolerated and is not chemically poisonous. There is no established safe quantity, though, so keep it occasional and small rather than making it a regular treat.

How would I know a bezoar formed?

The tell is a slow story rather than a sudden one: intermittent vomiting over days or weeks, picky or absent appetite, abdominal discomfort, constipation and weight loss. That pattern needs imaging at a veterinary clinic, not watchful waiting at home.

Persimmon

Caution

Ripe persimmon flesh is not chemically toxic to dogs, but persimmon is the classic bezoar fruit: its tannins can congeal in the stomach into an obstructing mass.

This food guide has not been reviewed by a veterinarian. It summarises general information from sources and should not be used to decide whether a food is suitable for an individual dog or to assess an emergency.

Check before feeding

Check the precautions before sharing

Risk depends on preparation, ingredients or amount. Read the precautions below; body weight alone cannot establish a safe portion.

Signs and health concerns

This list includes both observable signs and conditions identified through examination or testing. It cannot establish the cause or whether an exposure is safe.

Vomiting
Loss of appetite
Abdominal pain
Constipation
Weight loss
Obstruction

More about this food

Persimmon is the food where the danger is mechanical rather than chemical. Tannin (shibuol) reacts with stomach acid and coagulates with cellulose and protein into a diospyrobezoar, a hard concretion. The phenomenon is well documented in human and equine medicine and is reported in dogs that overeat the fruit. Unripe astringent persimmons carry far more tannin than ripe ones, so the Hachiya-type fruit you would never eat firm is exactly the one that matters here. Seeds and the woody calyx add a separate foreign-body and tooth-fracture risk. There is no published gram threshold. Risk scales with how much was eaten, how unripe it was, and whether it is fed repeatedly. Simple GI upset shows up within hours; a bezoar obstruction can take days to weeks to declare itself, which is why an uneventful evening after the fruit disappeared proves nothing. In the US this most often happens under a backyard American persimmon or an ornamental kaki tree in the fall, when windfall fruit carpets the yard and a dog grazes on it. Call your veterinarian right away for vomiting, refusal to eat, abdominal pain, constipation, or weight loss, and especially for intermittent vomiting that has been going on for days. If you cannot reach your vet, the ASPCA Animal Poison Control Center is available 24/7 at (888) 426-4435 (a consultation fee applies). Do not induce vomiting at home; that is a veterinary decision. If you offer persimmon at all, give a small amount of fully ripe flesh with skin, seeds and calyx removed.

Frequently asked questions

My dog ate windfall persimmons in the yard. What now?: Count on the fruit having been unripe, which is the high-tannin form, and assume seeds and calyxes went down with it. Call your veterinarian, and watch for vomiting, loss of appetite, constipation or weight loss over the following weeks, not just the next day.
Is a bite of ripe Fuyu persimmon safe?: A small piece of fully ripe, peeled, deseeded flesh is generally tolerated and is not chemically poisonous. There is no established safe quantity, though, so keep it occasional and small rather than making it a regular treat.
How would I know a bezoar formed?: The tell is a slow story rather than a sudden one: intermittent vomiting over days or weeks, picky or absent appetite, abdominal discomfort, constipation and weight loss. That pattern needs imaging at a veterinary clinic, not watchful waiting at home.

This information is general guidance and does not replace veterinary care. If your dog has swallowed something, contact a veterinarian immediately.