Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) glucose-galactose malabsorption ?
    ### Response:
    Glucose-galactose malabsorption is a condition in which the cells lining the intestine cannot take in the sugars glucose and galactose, which prevents proper digestion of these molecules and larger molecules made from them.  Glucose and galactose are called simple sugars, or monosaccharides.
    