Vitamin C (Ascorbic Acid) Deficiency and Excess
Vitamin C imbalances can occur in both deficiency and excess. First, vitamin C deficiency results in a disease known as scurvy. It is characterized by anemia, swollen gums, corkscrew hair, immunocompromise, and bleeding. The bleeding abnormalities can manifest as bruising, petechiae, hemarthrosis, subperiosteal hemorrhage, and perifollicular hemorrhage. Vitamin C excess, on the other hands, is a rare finding but still one to know on test day. It results in fatigue, nausea / vomiting, calcium oxalate kidney stones, and increased iron toxicity.