Mayonnaise is used for sandwiches, pizza, salad, pasta and other foods. Mayonnaise can be mixed with other sauces such as mustard or ketchup because it is very tasty. Mayonnaise has good nutrients such as protein, fat, fatty acids, vitamins, carbohydrates and minerals. Mayonnaise is a rich source of vitamin E, vitamin K, choline and minerals such as potassium, selenium and sodium.