Causes

• Improper nutrition stemming from feeding your cat a nutritionally incomplete food is a possible cause for weight loss and hunger. If the cat is receiving food that meets the American Association of Feed Control Officials' nutrition guidelines, there may be a problem with the cat's ability to absorb the proper amount of nutrition from the food. Infestation with one or more intestinal parasites such as tapeworms, hookworms and roundworms causes cats to lose weight but still be nutritionally deprived. Untreated diabetes and thyroid disorders can also cause a cat to remain hungry and lose weight even if given proper nutrition.