No, cats should not be fed prosciutto. Prosciutto is cured ham with a high salt and fat content, which can be harmful to cats. Cats cannot tolerate excessive salt or fat because they have different nutritional needs. Prosciutto may also contain spices such as garlic or onion, which are toxic to cats. Feeding your pet processed meat can lead to digestive and other health problems. Maintain a balanced diet and consult a veterinarian regarding safe treats.