Why is milk white

The whiteness is due to the scattering of light by the colloidal particles of the milk emulsion. Milk reflects all light!

Those white mustaches that we get after chugging down a refreshing glass of creamy milk is caused by the protein called Casein.

Rich in calcium, Casein helps contribute to milk's white color and the cream that is found in milk contains white colored fat.

Rich in calcium, Casein (a protein) contributes to milk's white color. Also, cream in milk contains white colored fat. Got Milk??