1.
Clin Exp Gastroenterol
; 5: 113-21, 2012.
Article
in English
| MEDLINE
| ID: mdl-22826639
ABSTRACT
Most people are born with the ability to digest lactose, the major carbohydrate in milk and the main source of nutrition until weaning. Approximately 75% of the world's population loses this ability at some point, while others can digest lactose into adulthood. This review discusses the lactase-persistence alleles that have arisen in different populations around the world, diagnosis of lactose intolerance, and its symptomatology and management.