Bloat mainly affects what kind of dog?

Large, deep-chested dogs.

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  1. Tiny short-legged dogs
  2. Large, deep-chested dogs ✔
  3. Hairless dogs

Why: Large breeds with deep chests, like Great Danes and German Shepherds, are at higher risk. Merck calls a deep, narrow chest a proven genetic risk factor.

Huh, didn't know that: Merck says a dog with a close relative that had GDV is also at higher risk.

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Which dog breed has never done anything wrong? A Saint Bernard.
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References

Answer: Large, deep-chested dogs. Large breeds with deep chests, like Great Danes and German Shepherds, are at higher risk. Merck calls a deep, narrow chest a proven genetic risk factor.

  1. Merck Veterinary Manual, Disorders of the Stomach and Intestines in Dogs www.merckvetmanual.com/dog-owners/digestive-disorders-of-dogs/disorders-of-the-stomach-and-intestines-in-dogs
    large, deep-chested dogs
    Checked 2026-10-10.
  2. Merck Veterinary Manual, Gastric Dilation and Volvulus in Small Animals www.merckvetmanual.com/digestive-system/surgical-problems-of-the-gastrointestinal-tract-in-small-animals/gastric-dilation-and-volvulus-in-small-animals
    Genetics are a proven risk factor for GDV, including deep/narrow thoracic conformation.
    Checked 2026-10-10.

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