Nutrient Deficiency

Every medical student in the last fifty years has been tested at least once on the basics of nutrient deficiency. At the risk of being overly pedantic:

Nutrient	Cellular mechanism	Deficiency
Biotin	Fatty Acid Synthesis	Alopecia, dermatosis, dry skin
Chromium	Improves glucose tolerance	Hyperglycemia
Copper	Enzyme cofactor, hematopoiesis, bone formation	Refractory iron repletion, hypochromic anemia
Folate	Homocysteine, purine, and pyrimidine metabolism, maturation of RBC’s	Hypercholesterolemia, anemia, hyperpigmentation
Omega-6 fatty acids	Prostaglandin synthesis, membrane integrity	Poor wound healing, increased infection rate, dermatosis
Selenium	Glutathione precursor,  component of thyroid hormone iodinase	Cardiomyopathy (Keshan disease)
Zinc	Enzyme cofactor, wound healing	Glossitis, dermatosis