Suckling of infants is universal among mammals, which are after all named after the Latin mamma for teat. Early mammals, around 200 million years ago, presumably had a variety of milk-specific sugars.

In a recent study published in The Journal of Applied Laboratory Medicine, researchers evaluated the performance of a compact diagnostic assay that can accurately and rapidly diagnose lactose ...

Lactose intolerance (lactase non-persistence) is the inability to digest the sugar (lactose) present in dairy products and is caused by a decline in the epithelial production of lactase-phlorizin ...

People develop lactose intolerance when their bodies don’t make enough of the enzyme lactase for the amount of dairy they consume, says Dr. Christopher Schmoyer, an assistant professor of ...

So lactose intolerance can emerge later in life in individuals who were previously tolerant. Anyone suffering from lactose intolerance at any life stage, in addition to eating yogurt and aged, hard ...