Humans are Mammals that have Milk as Primary Source of Protein and Fat In Initial Stages of Life. As Humans are Mammals, Having Milk as a Source of Food is the Right ways and Hence Milk is called the “Most Perfect Food”
We Humans Like to have a Ratio Between the amount of Fat and Proteins that we consume in our Regular Diet Due to Variuos reasons like Life Style, Work Nature Etc. Hence the Milk (Nature’s Most Perfect Food) was Rationalised to Get the Best of Milk in a Ratio Suitable for Each and Everyones Need for Every Stage of Life.