Meaning - A dairy product is food produced from the milk of mammals. Milk is the first food for infant mammals, it is nutritionally complete food and provides the protein, fat, carbohydrate, vitamins and minerals to support the growth of the young. Use - On a diet of milk, the birth weight of human infant doubles in 100 days. Today, the value of milk to the diet is unarguable as it is to the variety of meal that every age group eat. The other products derived from milk are cheese, butter, yogurt, cream, dairy desserts and snacks.