Determination of the lactose and galactose content of common foods: Relevance to galactosemia.

Classical galactosemia (CG) is a disorder of galactose metabolism which results from deficiency of the enzyme galactose-1-phosphate uridylyl transferase (GALT). Treatment consists of immediately eliminating galactose from the diet in the new-born and lifelong restriction of dietary galactose. The inclusion of a wider variety of foods for people with CG may provide many benefits, including improved nutritional adequacy and quality of life.