Biology
Estimate the theobromine dose from chocolate eaten, compared with published toxic thresholds.
Disclaimer: Educational estimate only, based on assumptions. It is not veterinary or professional advice. Contact a veterinarian (or qualified professional) right now before acting on any result.
Your inputs
Change any value — everything updates instantly.
Body weight in kg.
Estimate from the wrapper.
Milk ≈ 2, dark ≈ 5–6, baking ≈ 14 mg/g.
Try an example
Theobromine dose
10 mg/kg
This means about 10 mg/kg — call your vet now if chocolate was eaten.
What you are seeing
Each bar grows to show a result for your inputs.
The top bar is the main answer: 10 mg/kg.
Change chocolate eaten (now 50) and the bars update instantly.
Total theobromine
100 mg
Chocolate × content.
Result explanation: Theobromine dose
10 mg/kg.
Real-life comparison: With chocolate eaten 10% higher, the answer would be 11.
Low, normal or high? Below the ~20 mg/kg level where signs are usually reported — still call your vet for advice.
How the result changes with chocolate eaten
How to read this chart: The line shows the result across a range of values. The dot marks your input.
Estimate the theobromine dose from chocolate eaten, compared with published toxic thresholds.
This means about 10 mg/kg — call your vet now if chocolate was eaten.
Below the ~20 mg/kg level where signs are usually reported — still call your vet for advice.
Not veterinary advice. Any chocolate ingestion warrants a call to your vet.
Toxicity depends on dose per kg of body weight.
mg/kg = grams × mg/g ÷ weight
Symbols
Why this formula works
Toxicity depends on dose per kg of body weight.
Unit check
Units match on both sides ✓
Worked example
Common mistakes
This means about 10 mg/kg — call your vet now if chocolate was eaten.
No. Always confirm the dose, product and suitability with your veterinarian first — health conditions and other medicines change what is safe.
Baking and dark chocolate contain far more theobromine than milk chocolate.
Usually within 6–12 hours.
It has very little theobromine but fat and sugar can still upset the stomach.
Reviewed 2026-09-25 · Next review 2027-09-25
Important limitation. Not veterinary advice. Any chocolate ingestion warrants a call to your vet.
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