Milk is obtained from an animal but since it is not prepared by killing the animal and does not consist of any other animal part, most people consider it vegetarian. Although majority of the world's population consumes milk everyday, people who call themselves vegans do not consume milk or milk products. Vegans argue that milk is not necessary except in infancy. During infancy,milk from the mother is available to the child.adults, they don't need milk. Whatever the arguments for and against consuming milk, the fact remains that is a highly nutritious food and fulfills almost all our nutritional requirements. So in order to obtain our daily supply of nutrients well milk is absolutely necessary for our body.