Why is milk white?

Milk is a natural refreshment for children, providing all the nutrients a baby needs for growth. In cow's milk, casein composition combines with some fats, creating white color.

Cow's milk provides a wide range of essential nutrients for humans, although it can cause lactose resistance - a characteristic sugar-indigestion condition in milk.

Milk includes 5% lactose, 3.7% fat and 3.5% protein. Calcium rich in calcium is the most common protein and the combination of casein with some fats makes colors for this delicious drink.

White is the natural color of milk, the result of the wavelengths of visible light shining into the eyes. Casein and some fats reflect a wide wavelength band so the milk is white.

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