Liz has a rather satirical sense of humor. She has frequently been shown to be a stress eater, a trait she shares with Jack. Despite the fact that she often ingests high-amounts of junk food on a daily basis, she seems to keep her weight under control, perhaps because she does not seem to have proper meals. According to Fey, the character is not bulimic; "she just likes to eat". Liz does have some knowledge of cooking, though she admits to only using her oven to warm her jeans in the morning. She is allergic to both dogs and cats, as well as "anything warm and adorable". However, she does believe her allergy to dogs is psychosomatic, as she mentions that a dog bit her during the time of her first period.