Vitamins and Nutrition USMLE Step 1 Practice Question
A 40-year-old, formerly obese female presents to her physician. She was very proud of having lost 80 lb during the previous 2 years, but has now noticed that her 'hair is falling out.' On questioning, she reports having followed a strict, fat-free diet. Her alopecia is probably related to a deficiency of which of the following vitamins (referring to the diagram of hexose monophosphate shunt showing vitamins A, C, D, E, K)?
Answer choices
- AACorrect answer
- BC
- CD
- DE
- EK
- FB
See the full explanation
Get the correct-answer rationale, why each distractor is wrong, the underlying mechanism, and high-yield associations — plus adaptive practice that targets your weak areas — with a free MedBoardPRO account.