Toxic Foods for Cats - 9 Ingredients to Avoid

Cats are often fussy eaters, sometimes turning their noses up at their own meals. However, when it comes to human food, they can become curious, sniffing around your plate or even trying to sneak a bite. While it may be tempting to offer them a small treat, many common foods can be harmful to cats. As responsible pet owners, it's crucial to know which ingredients pose a risk. Here are 9 foods to keep out of your cat’s reach.

9 Common Human Foods that are Toxic to Cats

1. Milk & Dairy

We've all seen adorable images of cats licking at a bowl of milk. You might be surprised to find out that most cats are actually lactose intolerant. When a kitten hits adulthood, their body produces very little lactase (if any), the enzyme that breaks down lactose in dairy products. As such, they have trouble digesting milk. Feeding your cat dairy, especially cows' milk, may lead to an upset stomach, vomiting, and diarrhoea.

2. Citrus Fruits

The stems, leaves, seeds and peel of citrus fruits are highly poisonous to cats. Fruits such as lemons and oranges contain citric acid and essential oils, which can affect your cat's central nervous system. Ingestion may also lead to diarrhoea and vomiting.

3. Onions, Garlic & Chives

Onions, garlic, and chives are highly toxic to cats. Compounds in these foods can cause digestive upset within a day, including vomiting and diarrhoea. They can damage a cat's red blood cells, causing potentially life-threatening anaemia.

4. Yeast Dough

If you're a baker, keep raw dough away from your cats. As the yeast ferments, it can cause the dough to rise in your cat's stomach, leading to bloating, abdominal pain, and potentially alcohol toxicity due to ethanol production.

5. Alcohol

Not just alcoholic beverages, but alcohol found in household and cleaning products, can be highly hazardous to cats. If your cat ingests alcohol or is exposed to concentrated alcohol-containing products, take them to the vet immediately. Alcohol poisoning can cause vomiting, diarrhoea, and breathing difficulties in cats. Severe cases may lead to coma or even death.

6. Chocolate

Chocolate contains methylxanthines, primarily theobromine, with smaller amounts of caffeine, both of which are toxic to cats. Dark chocolate, especially baking chocolate and cocoa powder, contains higher concentrations of these substances and is more dangerous than milk and white chocolate. Ingesting chocolate can lead to symptoms like tremors, seizures, and in severe cases, death.

7. Caffeine

Caffeine is a methylxanthine, and is found in many common products like coffee, soda, and energy drinks. Cats are much more sensitive to caffeine than humans, and even small amounts can lead to serious symptoms such as cardiac issues, restlessness and nervous system stimulation.

8. Grapes & Raisins

While grapes and raisins are more toxic to dogs, cats may also be vulnerable to grape toxicity, potentially leading to kidney failure. Some signs may include lethargy, loss of appetite, and increased thirst. Avoid feeding these fruits to your cat, and also watch out for foods such as trail mix, baked goods and granola that may contain raisins or currants.

9. Raw Meat & Eggs

Raw meat and eggs may carry harmful bacteria like Salmonella and E. coli, which can lead to digestive issues, fever, and more serious infections. Raw eggs also contain avidin, which can interfere with the absorption of biotin, potentially causing skin and coat problems. 

What Should You do if Your Cat Eats Something Toxic?

If your pet has ingested something toxic, or if you suspect poisoning, contact your veterinarian immediately. If you know the source, keep the packaging handy, as it provides essential information to help your doctor determine the appropriate treatment. 

If the source is unknown and your pet is showing concerning symptoms, seek veterinary care right away. Early intervention is crucial to mitigate the effects of the poison. If possible, bring the suspected toxic substance to the vet with you.