Cats should not eat hummus because it contains several ingredients that are harmful and potentially toxic to them. Ingredients in traditional hummus like garlic and onion pose serious toxicity risks, causing conditions such as Heinz body anemia which damages red blood cells. Lemon juice and other citrus components in hummus can cause digestive upset, depression, and skin sensitivity in cats. Additionally, the high-fat content in tahini (sesame paste) may lead to digestive issues and risks like obesity or pancreatitis in cats. Even hummus variants without garlic or onion are not recommended as cats are obligate carnivores requiring animal protein-based diets, and eating hummus can cause stomach upset and is nutritionally unsuitable. If a cat ingests hummus containing garlic or onion, it is important to contact a veterinarian immediately. Small accidental licks of hummus without toxic ingredients usually do not cause significant harm but should still be avoided as a treat option since better, species-appropriate snacks exist for cats.

In summary, cats should not eat hummus due to toxic ingredients and their unique dietary needs. It is safest to keep hummus away from cats and provide them with proper feline nutrition and safe treats instead.