Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Medium-chain acyl-coenzyme A dehydrogenase deficiency ?
    ### Response:
    Medium-chain acyl-coenzyme A dehydrogenase deficiency (MCADD) is an inherited metabolic disorder that prevents the body from converting certain fats to energy, particularly during periods without food (fasting). Normally, through a process called fatty acid oxidation, several enzymes work in a step-wise fashion to break down (metabolize) fats and convert them to energy.
    