Lactose malabsorption and nutrition

  title={Lactose malabsorption and nutrition},
  author={Pascale Gerbault and Anke Liebert and Dallas M. Swallow and Mark George Thomas},
Lactose needs to be digested by the small intestinal enzyme lactase into its constituent monosaccharides, glucose and galactose, before transport across the epithelial cell membranes. Lactase activity is therefore essential for the development of young mammals, since their sole source of nourishment is their mother's milk. This chapter summarizes what is known about the genetics and evolution of the lactase persistence (LP) trait. Symptoms of lactose intolerance can arise after an individual… 

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