Humectants are food ingredients used to retain moisture and prevent foods from drying out. They are commonly used in a variety of food products such as baked goods, confectionery, and processed meats. Humectants work by absorbing water from the surrounding environment and retaining it within the food product, thus helping to maintain its texture and freshness. Common examples of humectants used in food include sodium dihydrogen phosphate, sodium pyrophosphate, sodium tripolyphosphate, anhydrous disodium phosphate, sodium hexametaphosphate, and monopotassium phosphate. These additives are important for extending the shelf life of many food items and ensuring that they remain palatable and enjoyable for consumers.