A 17-year-old boy comes to the physician for a routine health maintenance examination. He began a vegan diet 5 months ago. He takes no dietary supplements or medications. Vitals are within normal limits. Physical examination shows no abnormalities. Supplementation with which of the following is the most appropriate recommendation for this patient?
Calcium
Folate
Iron
Magnesium
Pantothenic acid
Pyridoxine
