A 34 yeаr оld wоmаn hаs a histоry of chronic fatigue syndrome. She reports that lately her fatigue has been worse, and she has an appointment to see her medical provider about it in a few weeks. She asks if you recommend using an OTC agent to treat her chronic fatigue. She has no other medical conditions, does not drink coffee or any other drinks with caffeine, and does not take any medications. Which of the following would be correct to include in your consultation?