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What is most lethal to cats?

Onions, garlic, chocolate, alcohol, and certain medications are among the most lethal substances to cats, even in small amounts.

The Most Dangerous and Lethal Foods for Cats

Cat owners must exercise caution when it comes to their pets' diets. While many human foods might seem harmless, some are highly toxic to cats and can be potentially lethal even in small doses. In this guide, we'll explore the most dangerous foods for cats, the symptoms of poisoning, and how to prevent accidental exposure.

1. Onions, Garlic, Chives, and Shallots

These alliums are extremely toxic to cats, irrespective of form – whether raw, cooked, powdered, or dried. They can destroy red blood cells, leading to anemia. Even small repeated doses are harmful.

  • Symptoms: Vomiting, diarrhea, lethargy, weakness, pale gums, and orange-tinted urine

2. Chocolate and Caffeine

Theobromine and caffeine found in chocolate and caffeinated products are deadly to cats. Dark and unsweetened chocolate poses the greatest threat.

  • Symptoms: Tremors, seizures, irregular heartbeat, rapid breathing, and in severe cases, death

3. Alcohol and Yeast Dough

Alcohol is extremely lethal to cats. Even small quantities can depress the nervous system. Fermenting dough can also produce alcohol inside the stomach.

  • Symptoms: Disorientation, vomiting, shallow breathing, seizures, or coma

4. Grapes, Raisins, Sultanas, and Currants

Although the toxic agent is unknown, consumption can lead to acute kidney failure.

  • Symptoms: Loss of appetite, vomiting, abdominal pain, lethargy

5. Human Medications and Household Items

Acetaminophen, ibuprofen, and many other medications, along with foreign objects like coins or string, can be lethally toxic.

  • Symptoms: Vary by substance, may include vomiting, collapse, or death

6. Raw Meat, Eggs, Fish, and Bones

These carry the risk of bacterial contamination and harmful enzymes.

  • Symptoms: Gastrointestinal upset, neurological issues, choking hazards from bones

7. Avocados

Contains persin, which is mildly toxic to cats and can cause vomiting or respiratory issues.

  • Prevention: Keep avocado and guacamole out of reach

8. Milk and Dairy Products

Most adult cats are lactose intolerant and suffer from digestive upset.

  • Symptoms: Diarrhea, gassiness, abdominal discomfort

9. Mushrooms

Unknown or wild mushrooms can lead to severe neurological and liver damage.

  • Prevention: Check your environment for mushroom growth

10. Xylitol and Sugars

While primarily toxic to dogs, xylitol's effect on cats is not well defined but should be avoided. Sugary foods can lead to obesity and diabetes.

11. Tomatoes and Potatoes

These contain solanine, especially when raw, leading to gastrointestinal distress in large quantities.

12. Citrus Fruits

Citrus oils and seeds can irritate the stomach and the nervous system.

Recognizing Toxicity in Cats

Common symptoms that may indicate a poisoning event include:

  • Vomiting and diarrhea
  • Lethargy and weakness
  • Rapid breathing or abnormal heart rate
  • Seizures or tremors
  • Incoordination or collapse

Prevention Tips

  1. Do not feed cats any human food not approved by veterinarians
  2. Keep potentially harmful food items out of reach
  3. Supervise cats during meal prep or when contractors/guests visit
  4. Secure all medications and cleaning agents

Immediate Response if Ingested

If your cat eats something potentially toxic, contact a veterinarian immediately. Bring a sample of the food or packaging to help identify the toxin.

Understanding and preventing food toxicity can save your cat’s life. Always stay informed about harmful substances and maintain a vet-approved diet to ensure your cat’s safety.

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