Can Cats Have Garlic Sauce. If your pasta sauce contains garlic, onions, or large amounts of salt, do not even let them have a lick of it! Garlic is pretty toxic for cats, and even small amounts can cause some health issues.
Photography © kazoka30 | istock / getty images plus. Leeks and chives also belong to the same family as onions and garlic and should also be avoided if they are present in your sauce. Tomato sauces and ketchup are rarely just pure tomatoes.
A small amount of onion or garlic in some sauce is not likely to cause problems.
Fat trimmings can also cause pancreatitis in cats. Garlic is pretty toxic for cats, and even small amounts can cause some health issues. Next, perhaps the most common ingredient on a pizza, tomato.the leaves and stems of a tomato plant can lead to death, and eating unripened tomatoes (green ones) are highly poisonous. If your cat consumed the garlic herself, even though you feel what she took is within the safe dose, it doesn’t hurt to take her to the vet and give yourself some peace of mind.