Lactose intolerance is a non-allergic food sensitivity, and comes from a lack of production of the enzyme lactase, required to digest the predominant sugar in milk.
milk | Harvey Milk | Under Milk Wood | Milk | Allergy | Neutral Milk Hotel | Milk (film) | Milk tea | British Railway Milk Tank Wagon | allergy | National Institute of Allergy and Infectious Diseases | Milk Tea | The Milk-Eyed Mender | Safe as Milk | No Milk Today | Moscone–Milk assassinations | 2008 Chinese milk scandal | The Price of Milk | The Milk of Human Kindness | powdered milk | Milk Marketing Board | Milk Inc | Milk Cup | ''Milk'' | Green Milk from the Planet Orange | World Allergy Organization | Under Milk Wood (film) | The Times of Harvey Milk | ''The Mayor of Castro Street: The Life and Times of Harvey Milk,'' | The Color of Milk |
Lactose intolerance or a milk allergy can prompt the use of milk substitutes; they are also consumed by vegans.