Milk

Although there are many different types of animal milk available, cow’s milk is by far the most popular and readily available. Highly nutritional, most animal milk contains protein, calcium, phosphorus, vitamins A and D, lactose (milk sugar), and riboflavin. It is also relatively high in sodium. Unless purchased directly from a farm, almost all milk sold commercially has been pasteurized to destroy the microorganisms that can cause disease and speed spoilage. To ensure a uniform liquidity, most commercial milk products have also been homogenized, or emulsified, to prevent the fats from separating from the liquid.