Can cats have green onions? - briefly
Cats should not consume green onions as they can be toxic to felines. Green onions contain thiosulfates and disulfides, which can damage red blood cells in cats, leading to anemia.
Can cats have green onions? - in detail
Cats should not consume green onions. While green onions are a common and healthy addition to human diets, they pose significant risks to felines. The primary concern is thiosulfate, which is present in both green and regular onions. Thiosulfate can damage red blood cells in cats, leading to anemia. This condition, known as Heinz body anemia, occurs when the damaged red blood cells are removed from circulation, reducing the overall number of functional red blood cells. Symptoms of Heinz body anemia include lethargy, weakness, pale gums, and in severe cases, death.
Additionally, green onions contain allium, a compound that is toxic to cats. Allium can cause oxidative damage to red blood cells, exacerbating the risk of anemia. The combination of thiosulfate and allium makes green onions particularly harmful to felines. Even small amounts can be dangerous, as cats are more susceptible to these compounds than humans or other animals.
If a cat accidentally ingests green onions, it is essential to monitor for any signs of illness and contact a veterinarian promptly. Symptoms may include vomiting, diarrhea, lethargy, and pale gums. In severe cases, the cat may require supportive care, such as intravenous fluids or blood transfusions, to manage anemia and prevent further damage.
To ensure feline health and safety, it is best to avoid feeding cats any type of onion, including green onions. Providing a balanced diet specifically formulated for cats will meet their nutritional needs without exposing them to potential hazards.