Vitamin C (ascorbic acid or ascorbate) is essential for human health. It cannot be synthesized by humans, and must be obtained from dietary sources, primarily vegetables and fresh fruits. In human beings deprived of vitamin C, the life-threatening nutritional deficiency disease scurvy develops. That ascorbic acid is the essential nutrient for the prevention and treatment of scurvy has been accepted medical wisdom since the 1930s, when Albert Szent-Gyorgyi was awarded the Nobel Prize for its discovery and isolation. But very little else about this contentious substance has achieved such unanimity of medical opinion.
KeywordsCytotoxic Drug Cancer Chemotherapy Cancer Clinical Trial Biomedical Model Relative Survival Rate
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