Deficiency Causes diet lacking citrus fruits and green vegetables infants on formula that is boiled too long excessive heat destroys vitamin C cigarette smoking Presentation scurvy swollen gums, bruising, perfollicular hemorrhage, poor wound healing, glossitis, ↑ bleeding time anemia due to combined iron and folate deficiency Treatment supplementation with vitamin C should produce resolution of symptoms Excess Symptoms formation of renal calculi made from uric acid