Lactose Intolerance

This chapter presents a case scenario of lactose intolerance. Lactose intolerance is the inability to digest and absorb lactose, which is the sugar in milk, due to deficiency of the enzyme lactase. This condition commonly occurs after weaning, and it results in various gastrointestinal symptoms such as diarrhea. In addition, it may result in nutritional deficiencies. Management of lactose intolerance requires diet manipulations. This case study provides the needed information to implement the appropriate intervention such as patient's details and case history. Moreover, the case analysis section discusses in detail the disease pathophysiology and the medical nutrition therapy goals. This comprehensive analysis will allow the dietetic professional to follow the nutrition care process (NCP) framework (assessment, diagnosis, intervention, and monitoring and evaluation) to properly intervene and deal with the case. This case study will show the importance of the medical nutrition therapy for the management of lactose intolerance.