Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Abetalipoproteinemia ?
    ### Response:
    Abetalipoproteinemia is a condition characterized by the inability to fully absorb dietary fats, cholesterol and fat-soluble vitamins. Signs and symptoms appear in the first few months of life and can include failure to thrive; diarrhea; acanthocytosis; and stool abnormalities.
    