Food additive are the components added to the food to make it more attractive and increase its shelf life. Sometimes they are also added to enhance the taste of the food. Some examples of additives are food colors, monosodium glutamate, artificial sweeteners etc. Sometimes agents like fat emulsifiers, stabilizing agents etc. are also used.in rare cases, nutritional supplements are also added as additives to enhance the nutritive value of the product. Nutritional supplements are the only class of additives which have nutritive value. Rest all additives have no nutritional supplements and cause health hazards.