Dog Raisin & Grape Toxicity Calculator

Record the exposure. Get help early.

Veterinary Toxicology References

Published veterinary toxicology resources · ASPCA poisoning guidance

This page uses published veterinary toxicology references. It provides calculations and general information only, not a diagnosis or treatment plan.

VETERINARY SAFETY NOTICE

This calculator cannot diagnose poisoning, rule out toxicity or establish a safe exposure. If poisoning is possible, contact a veterinarian or animal poison service immediately; do not wait for symptoms.

Do not induce vomiting or give home treatments unless directed by a veterinarian.

No known safe dose. Contact your veterinarian now — do not wait for symptoms.

Exposure Details

Dog weight

Your dog’s current body weight.

Food type

Amount eaten

Enter the amount of raisins eaten.

Amount unknown

Time since ingestion

Repeated exposure (e.g. over multiple days) Symptoms present (vomiting, lethargy, etc.)

Meal ingredients & notes

Amount entered representsProduct, dates and notes for the veterinarian

No standard grape weight or raisin-to-grape potency factor is assumed. Repeated intake is recorded, not modeled.

Illustrative Labrador beside a separate display of grapes and raisins; not eating

Exposure Summary & Next Steps

CONTACT A VETERINARIAN NOW0.50 g/kgEstimated material exposure — not a toxicity threshold.

5 gReported raisins

10 kgDog weight

UnknownIndividual sensitivity

Any amount needs professional advice.

A low number cannot rule out kidney injury.

Act Now

Remove access and save the packaging.
Call your veterinarian or poison control now.
Do not induce vomiting or give charcoal unless directed by a veterinary professional.

ASPCA Poison Control+1 888 426 4435 Pet Poison Helpline+1 855 764 7661

US-based services · fees may apply. Elsewhere, contact your local emergency vet.

Why kidneys need monitoring

Educational canine kidney cross-section illustration; not a diagnostic image — Your veterinarian may check blood, urine and urine output. Educational illustration, not a diagnostic image.

Symptoms may be delayed

Early signs

Vomiting, appetite changes may occur.

Following 1–3 days

Kidney injury may develop, even if your dog seems well.

Any time

Weakness or reduced urination needs urgent care.

Do not wait for this timeline before calling. Timing varies between dogs.

Common items that contain grapes

Fresh grapes, raisins, sultanas and Zante currants (dried grapes) can all be toxic to dogs.

What the estimate can tell you

Exposure = known fruit ingredient grams ÷ body weight kg. This estimates material exposure. No safe dose is known and individual sensitivity varies.

Calculations & important limitations

Piece count × entered average piece weight estimates fruit mass. A known meal mass percentage can be used with a meal weight. Unknown quantities produce no numeric exposure.

Tartaric acid and its salt potassium bitartrate are considered the most likely cause. Content varies across fruit and products. No validated individual risk score, raisin-to-grape potency multiplier, “safe number of pieces” or kidney-injury prediction is calculated.

Cooking or baking does not make raisins safe. These calculations concern grapes and dried-grape products. Zante currants are dried grapes; true black/red currants of the genus Ribes are different fruits.

Frequently asked questions

Is one grape safe?

No reliable safe amount is established for an individual dog. Any suspected ingestion warrants immediate veterinary or poison-control advice. A small number does not guarantee safety.

What if I do not know the amount?

Select “Amount unknown” and record the product, possible quantity and time. No numeric estimate will be shown. You can still download the summary and contact a professional immediately.

What should I tell the vet?

Give your dog’s weight, fruit/product type, known amount or piece count, when it happened, any repeated intake and symptoms. Keep the packaging. Do not wait for symptoms or attempt home treatment.

Is two hours a deadline for treatment?

No. Call immediately regardless of elapsed time. Fruit can remain in the stomach for several hours. A veterinarian will assess decontamination, fluids and monitoring. Activated charcoal’s effectiveness for grape/raisin poisoning is unknown; do not give it yourself.