This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Sweaty feet odor in body fluids occur d/t deficiency of 
Select and explain. 
A. Biotin, B. FAD linked dehydrogenase, C. Thiamin linked decarboxylase, D. Leucine transaminse
B: FAD linked dehydrogenase
Answer: B: FAD linked dehydrogenase 
Explanation: Sweaty feet odor in body fluids a/ w neurological problems occur in deficiency of FAD linked dehydrogenase specific for isovaleryl COA.