Milk is a common food that is consumed by most people. There are even alternatives for those that are lactose intolerant or do not want to consume dairy. Milk in my opinion, is one of the most important and beneficial foods on the planet. Mammals strictly consume milk in the early stages soon after birth. Humans consume milk exclusively for 6 months and introduced other foods gradually following birth.
Macro Nutrients include, fat, protein and carbohydrates. Milk contains all of these important nutrients essential for our growth and development. Both protein and carbohydrates contain 4 calories per gram and fat has 9 calories per gram.