One important function of Vitamin C is the formation and maintenance of
collagen, the basis of connective tissues, which is found in skin,
ligaments, cartilage, vertebral discs, joint lining, capillary walls, and
the bones and teeth.
Ascorbic acid also helps thyroid hormone production, and it aids in
cholesterol metabolism, increasing its elimination and thereby assisting in
lowering blood cholesterol.
Ascorbic acid may activate neutrophils, the most prevalent white blood
cells that work on the frontline defense in more hand-to-hand combat than
other white blood cells. It also seems to increase production of
lymphocytes, the white cells important in antibody production and in
coordinating the cellular immune function.
Ascorbic acid acts as a detoxifier and may reduce the side effects of
drugs such as cortisone, aspirin, and insulin; it may also reduce the
toxicity of the heavy metals lead, mercury, and arsenic.
Vitamin C also decreases the production of histamine, thereby reducing
immediate allergy potential.