Because of ascorbic acid’s role in immunity, its antioxidant effect, the adrenal support it provides, and probably its ability to make tissues healthy through its formation and maintenance of collagen, vitamin C is used to treat a wide range of viral, bacterial, and fungal infections and inflammatory problems of all kinds. I have used vitamin C successfully in many viral conditions, including colds, flus, hepatitis, Herpes simplex infections, mononucleosis, measles, and shingles. Recently, vitamin C has been shown in some studies to enhance the production and activity of interferon, an antiviral substance produced by our bodies. To affect these conditions, the vitamin C dosage is usually fairly high, at least 5–10 grams per day, but it is possible that much smaller doses are as effective. Vitamin C is also used to treat problems due to general inflammation from microorganisms, irritants, and/or decreased resistance; these problems may include cystitis, bronchitis, prostatitis, bursitis, arthritis (both osteo- and rheumatoid), and some chronic skin problems (dermatitis). With arthritis, there is some suggestion that increased ascorbic acid may improve the integrity of membranes in joints. In gouty arthritis, vitamin C improves the elimination of uric acid (the irritant) through the kidneys. Ascorbic acid has also been helpful for relief of back pain and pain from inflamed vertebral discs, as well as the inflammatory pain that is sometimes associated with rigorous exercise. In asthma, vitamin C may relieve the bronchospasm caused by noxious stimuli or when this tight-chest feeling is experienced during exercise.

Vitamin C’s vital function in helping produce and maintain healthy collagen allows it to support the body cells and tissues and bring more rapid healing to injured or aging tissues. Therefore, it is used by many physicians for problems of rapid aging, burns, fracture healing, bedsores and other skin ulcers and to speed wound healing after in-jury or surgery. Peptic ulcers also appear to heal more rapidly with vitamin C therapy. The pre- and postsurgical use of vitamin C supplementation can have great benefits. With its collagen function, adrenal support, and immune response support, it helps the body defend against infection, supports tissue health and healing, and improves the ability to handle the stress of surgery. Vitamin A and zinc are the other important pre- and postsurgical nutrients shown by research to reduce hospitalization time and increase healing rates, thereby preventing a number of potential complications.

Vitamin C is also used to aid those withdrawing from drug addictions, addictions to such substances as narcotics and alcohol, as well as nicotine, caffeine, and even sugar—three very common addictions and abuses. High-level ascorbic acid may decrease withdrawal symptoms from these substances and increase the appetite and feeling of well-being. For this reason, it may be helpful in some depression and other mental problems associated with detoxification during withdrawal. Vitamin C also may reduce the effects of pollution, likely through its antioxidant effect, its detoxifying help, and its adrenal and immune support; specifically, it may participate in protecting us from smog, carbon monoxide, lead, mercury, and cadmium.

Vitamin C is a natural laxative and may help with constipation problems. In fact, the main side effect of too much vitamin C intake is diarrhea. For iron-deficiency anemia, vitamin C helps the absorption of iron (especially the nonheme or vegetable-source iron) from the gastrointestinal tract. In diabetes, it is commonly used to improve the utilization of blood sugar and thereby reduce it, but there is no clear evidence that regular vitamin C usage alone can prevent diabetes. There are some preliminary reports that ascorbic acid may help prevent cataract formation (probably through its antioxidant effect) and may be helpful in the prevention and treatment of glaucoma, as well as certain cases of male infertility caused from the clumping together of sperm, which decreases sperm function.