Norwegian Buhund: inherited diseases and health

Updated 2026-09-30 · 2 sources

Based on: OMIA (University of Sydney), Wikidata

Breed health

The inherited conditions below have been documented in this breed in published research. That does not mean your dog has them or will get them – but it helps to know the names when you talk to a breeder or a vet.

Norwegian Buhund and chocolate: how much is dangerous?

Typical adult weight: 12–18 kg. Grams of chocolate at which signs can start (20 mg/kg) and at which severe signs are reported (40 mg/kg):

Dog weight	Milk	Dark 70–85%	Baking / unsweetened
12 kg	120 g signs 240 g severe	30 g signs 60 g severe	17 g signs 34 g severe
18 kg	180 g signs 360 g severe	45 g signs 90 g severe	26 g signs 51 g severe

Based on published doses: signs from about 20 mg/kg, severe signs from 40 mg/kg (US FDA, Cortinovis & Caloni 2016, Swedish Poison Information Centre). An estimate, not a diagnosis.

Check the exact amount with the chocolate calculator →

Inherited conditions documented in the breed

Conditions documented: 1

A gene variant is known for 1 of the conditions below, so a DNA test may exist. Ask your vet or the breed club.

Condition	Body system	Inheritance	Gene variant known
Ataxia, cerebellar, KCNIP4-related^[1]	Nervous system	Autosomal recessive	Yes

What this list means

“Documented in the breed” means at least one published case or study – it says nothing about how common the condition is.
Many of these conditions are rare. A responsible breeder can tell you which health tests the parents have had.
Where the gene variant is known, a DNA test may exist – ask your vet or the breed club.
If your pet shows signs of illness, contact your vet. This page cannot tell you whether your pet is ill.

About the breed

Origin: Norway
Height: 41–47 cm
Weight: 12–18 kg
FCI number: 237

^[2]

If your pet is struggling to breathe, has collapsed, is having a seizure or can't stand up: go to the nearest vet now.

Not sure how serious it is?

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Sources

How this page was made: the list is taken directly from the sources below; nothing on it was written by AI. Names of conditions may be machine-translated. It is information, not a diagnosis. How we write our pages