Leeks

Leeks

Pictured: Leeks

Poisonous to: Cats, Dogs

Level of toxicity: Generally mild to moderate

Common signs to watch for:

  • Drooling
  • Nausea
  • Oral irritation
  • Vomiting
  • Diarrhea
  • Lethargy
  • Abdominal pain
  • Elevated heart rate and respiratory rate
  • Weakness
  • Exercise intolerance
  • Collapse
  • Pale gums
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Leeks are part of theĀ AlliumĀ family (which also includes onion, chives, and garlic) and are poisonous to dogs and cats. Garlic is considered to be about 5-times as potent as onion and leeks. Certain breeds and species are more sensitive, including cats and Japanese breeds of dogs (e.g., Akita, Shiba Inu). Toxic doses of leeks can cause oxidative damage to the red blood cells (making them more likely to rupture) and GI upset (e.g., nausea, drooling, abdominal pain, vomiting, diarrhea). Other clinical signs of anemia can also occur including lethargy, pale gums, increased heart rate, increased respiratory rate, weakness, exercise intolerance, and collapse. Signs of leek poisoning can be delayed and not apparent for several days.

Poison type: plants

Scientific name: Allium porrum

Alternate names: Allium, Alliaceae, chives, garlic, disulfides, thiosulfates, anemia, onions