Refusing food is a common symptom for many diseases, but may also occur in healthy cat. Among the causes of the lack of interest in food is a preference to certain substances that cats develop during weaning, when they learn from the mother to recognize what is the food.
A power monotonous in these weeks can adversely affect the ability of the cat to accept successively different food. The cat may also refuse food if it is placed next to the litter box in a place too disturbed or in the presence of an aggressive cat, threatening him and attack when he tries to get close. A negative experience, such as an allergic reaction, nausea and vomiting, may cause an aversion to the smell and taste of a certain food.