What Human Food Is Harmful to Your Cats?

Sharing your food and eating from the same plate with your beloved one is bliss. But when that beloved one is your feline furball, you will want to wonder whether it is right or not because eating, after all, concerns with nutrition and hygiene for both of you.

As a part of your chummy companionship, you would love to share everything with them. Well, every creature has different nutritional needs to function properly. That said, a cat’s body is wired differently and her diet is planned the way it replenishes her energy and keeps her healthy. When you feed her whatever you’re eating, there are chances that her nutritional needs don’t satisfy. Moreover, some human foods are toxic to them.

Fortunately, it is safe to feed your cat from your plate or table scraps. But there’s a caveat. You cannot feed everything from your plate and this shouldn’t be more frequent. Why? A cat’s diet is high protein and fat-laden and generally grain-free. Even if you feed them the human foods safe for them, that won’t satisfy her nutritional needs.

In this article, we will discuss what foods are harmful and shouldn’t feed cats. However, there is a lot to discuss what humans food are good for cats but that is another article for another time.


It is extensively known fact that chocolates are toxic to dogs, in fact, it is also toxic to cats. Chocolates contain the substance called theobromine that causes the toxicity in them. The highest amount of theobromine is present in dark and unsweetened chocolates.


Avocado is super healthy for humans but it’s mildly toxic to felines. Each of its parts like leaves, seeds, tree bark, and fruit contains Persin which can cause vomiting and diarrhea in cats. When you are at a party and your kitty is accompanying you, make sure your cat stays away from the bowl of guacamole or the spoons or forks that were used to prepare it.

Grapes and Raisins

These fruits’ harmful effects are found in dogs but yet there is not enough research that can reveal all the unknown potential toxic substances to cats. ASPCA also advises not to give grapes and raisins in any amount to your pets as there are still many unknowns with the potentially toxic substances present in them.

Raw Green Potatoes and Green Tomatoes

Both of these foods contain toxic substances called Deadly Nightshade and Glycoalkaloid Solanine. They are basically the members of the Solanaceae family of plants. Deadly Nightshade causes Hypersalivation, inappetence, severe gastrointestinal upset, diarrhea, drowsiness, CNS depression, confusion, behavioral change, weakness, dilated pupils, slow heart rate whereas Glycoalkaloid Solanine causes nausea, diarrhea, and vomiting.

However, don’t worry if your cat’s favorite canned food contains tomatoes because manufacturers use ripe tomatoes and they are not at all harmful.


Alcohol in any form and of any type can be toxic for cats. However, a small amount of liquor beverage is not deadly but consuming in high amount can be. If you are at a party or hosting one, make sure your cat doesn’t go lick the unfinished drinks or find open alcohol containers or large punch bowls as that will make your cat prone to consume more.

Garlic, Onions, and Other Similar Root Vegetables

Onions packs a substance, N-propyl disulfide that has devastating effects on red blood cells in cats. This further leads to anemia called Heinz body anemia. Garlic and other roots have similar substances in lesser amounts. Well, you don’t have to worry if your cat ingests a little amount of cooked garlic and onions in the sauce because it is not likely going to cause any problems. But it can be dangerous if your cat eats a full clove of garlic or a big piece of onion which will end up in a upset stomach.

Other Harmful Foods

As I have mentioned, some foods are not wholesome for cats or some of them put them at risk of bad health. Not to mention, these foods are not toxic. Meat trimmings, raw eggs should not be fed because they harbor bacteria like salmonella.

Milk and milk products should also be avoided. Milk is not lethal for them but sometimes it can cause stomach upset. In fact, an adult cat thriving on her balanced diet doesn’t need milk. In addition, some cats are lactose intolerant and that will likely to cause stomach upset, cramps, and gassiness.

If your kitty licks off a little bit from your coffee mug, that is okay. But a big no-no to caffeinated drinks. If you discover your kitty has accidentally ingested a cupful of coffee and is feeling restless and anxious, immediately take her to your vet or to the nearby animal hospital. Starbucks like food giant has puppy and cat drinks on their menu but they are not caffeinated. So do not ever feed them coffee drinks at home mistakenly. If your cat loves milk and often beg for it, you can give her some cream 2-3 times a week. The cream has quite less amount of lactose.

What to Do in the Case of Emergency

You can contact your veterinarian or the ASPCA National Animal Poison Control Center at 1-888-426-4435. You will need to share any information on what your cat has ingested or what might be causing the toxicity and about the symptoms. They might charge you for speaking with them.

Your Takeaway

Sharing everything with your beloved kitty is so obvious. But some human foods are toxic and have potential risk of having disease-causing bacteria. That said, you should always keep an eye on what your cat tries to eat in your absence. Go through the list of the foods I mentioned here and keep them in your mind. Moreover, if you are looking for healthy and wholesome food for your cat here are some top rated cat food brands of 2019 to look for.

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