Cat Care Nutrition Wellness

9 Foods to Never Give to Your Cat

"People" foods to avoid

1. Chocolate
Chocolate contains 2 ingredients that are lethal to cats: theobromine, which is toxic to most animals, even in small amounts, and caffeine, which cats are far more sensitive to than we are. As much as we love chocolate, no amount is safe for cats and any chocolate related products (cocoa powder, pudding, even white chocolate) should be kept out of reach of little kitty paws. Most cats aren’t interested in chocolate and will stay away from it, but it’s better to be safe than sorry.



2. Onion
Onions contain N-propyl disulphide which causes anemia and, thereby, jaundice (yellow discolouration in lips and eyelids, as well as skin in light-skinned cats). Onions cause the breakdown of red blood cells in cats, and as these are the cells that carry oxygen around the body, it can cause weakness and shortness of breath. A toxic dose for the average cat can be just a few slices. No onions whatsoever, whether fresh, dried, or powdered.



3. Uncooked potatoes & tomatoes
Both these plants come from the deadly nightshade family. Eaten raw, they are likely to cause cats gastrointestinal distress. Cooked tomatoes and potatoes, however, have no toxic effects. (Eating green potatoes, cooked or not, can cause cardiac issues, hallucinations and paralysis, but as they are bitter this is not likely to be an issue.)



4. Milk & milk products
As kittens, cats can drink cow’s milk, but as they grow up cats become intolerant to lactose, a sugar found in cow’s milk, and can no longer digest dairy products. Even a few laps of milk or a tidbit of cheese can cause gastrointestinal pain and diarrhea in adult cats. Lactose-free milk or live culture yogurt, however, can be given at any age.



5. Yeast dough
A cat’s warm, moist tummy is the perfect place for yeast to expand, which can cause a whole slew of issues.The ingestion of yeast dough can cause severe abdominal pain, intestinal rupture, and even alcohol poisoning as the dough rises and expands and the yeast ferments. If you’re worried about your cat jumping on the counter while you’re baking, keep her in a separate room until all the cleanup is done.



6. Grapes & raisins
We often think that what’s healthy for us must be healthy for our pets. But this is not always the case. While the exact reason behind their toxicity is still unknown, grapes and raisins may cause kidney failure, vomiting, and diarrhea in cats. Every cat is different, so the ingestion of a grape or raisin won’t definitively cause kidney failure, it’s better not to risk the possibility and to keep these foods out of reach of your cat.



7. Caffeine & alcohol
This one may seem obvious, and chances are these beverages would never end up in a cat dish, but if a curious cat were to lap the dregs out of a coffee cup or get into an open saucepan of penne vodka sauce, the consequences would likely be fatal as there is no cure for caffeine or alcohol poisoning in cats. Three tablespoons of 40 percent liquor is enough to prove deadly.



8. Garlic & chives
Like onions, garlic and chives can also cause anemia and gastrointestinal problems in cats. In small amounts, chives are sometimes included in commercial cat food. While this may not be enough to cause problems, don’t let your cat mistake your window box of chives for a planter of cat grass.



9. Xylitol
Xylitol is an artificial sweetener found in candy, gum, and even some toothpastes. Xylitol will produce seizures in cats soon after ingestion and liver failure a day or so after, so keep your gum out of kitty’s grasp.





Want to know what people foods you CAN feed your cat <——Check out our post!

Add A Comment


  • Mae

    Why does my cat try to eat yogurt?

  • Tracey Mortimer

    Mushrooms are poison to Cats

  • Chas

    Mae, it’s because yogurt is delicious!

  • Miles

    My cat gets up on the counter often. Is popcorn ok for cats?

  • Cheryl

    In answer to some earlier comments my cats all have adored pop corn! Yogurt gas good probiotics, good for them if plain unsweetened.

  • Jack Tchyr

    Precise and descriptive advice, much appreciated~!~

  • Edonylamont

    Was giving our kitten a cream based drink and dry food, she developed bladder stones and had to have an operation. It cost a lot and was worried she would not make it. She was 3 yrs old then and it took many weeks to get her to eat wet food. She is still obstinate when we try to feed her the chicken from Fancy Feast but she does eventually eat it. She is also on a prescription diet and is doing well now. The food she likes is Science Diet which is good for her.

  • Gail

    My vet commented that although brands like Fancy Feast and Friskies have been given to cats for eons, it’s the “McDonald’s” of cat food. A higher grade wet food is recommended.

  • Alyssia corbett

    I keep food out of my kitty
    cat’s 🐈 paw reach even soda, she stays away from caffeine soda, and stays away from chocolate she knows its bad for her she is just a kitten she’s not even 3 years old yet. Thank you for the information on the 9 important foods not to let your kitty 🐈 go near ever!!

  • Donna A. Anderson

    My cat LOVES milk, she handles just fine.

  • Faria Qureshi

    heinz baby food > beef with broth and chicken with broth is good for cats with digestive problems or stomach sensitivity. Nothing else from the heinz brand as it contains salt, onions and garlic which are toxic.



  • Laural

    Priscilla, don’t whip your cat!!! If he has loose stools and then wipes his butt on ground, it is because he is trying to clean himself. Instead take a wet warm paper towel, and clean his butt. Stop feeding him the milk product that is making him have diarrhea.

  • Mink

    In your article “how to detoxify your cats body…” you have garlic as a detox ingredient but in this article it appears as a ” no no”. The correct one is this one. Garlic is PURE POISON, I had patients drooling point blank because of it. In fact garlic and onions run in the same category as they are both from the “Allium” group (like scallions, shallots, leek, and chives) all these are a no go for cats. Please correct this so readers wont make a mistake by following garlic as a detox treatment.

  • Elisabeth

    My 3 month old cat just had a tiny bit of lemon and I read that it’s super toxic what should I do

  • Alyssia Corbett

    I try my best to not ever feed my baby human food, unless she is begging for just a little bit even if it’s just a little bit of chicken or tiny bit of pizza bread that’s about it besides that nope she eats only her dry food.

  • Ravi kumar

    How to avoid milk from my kittens 4months.

  • Paul

    Anybody who hits their cat should be put in jail. Nobody better hit their cat when I’m around. What kind of moron does that?

  • Rksku

    Thanks for the useful info.

    You all realise priscilla has most likely had an autocorrect fail and means wipe not whip right?

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