Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) African iron overload ?
    ### Response:
    African iron overload is a condition that involves absorption of too much iron from the diet. The excess iron is stored in the body's tissues and organs, particularly the liver, bone marrow, and spleen. Humans cannot increase the excretion of iron, although some iron is lost through bleeding or when cells of the intestine (enterocytes) are shed at the end of the cells' lifespan.
    