A nutritional liquid produced by female mammary glands to feed newborn mammals. Milk from domesticated animals (cows, goats, sheep) has been used as a human food source, either directly or as processed into butter and cheese. Milk is essentially an emulsion of
Fat (4%) and
Protein (3%) in water, along with dissolved sugar (
Lactose), minerals (
Phosphorus), and vitamins (B, C and D).