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ascorbic acid (generic name)

Centrum Singles-Vitamin C (brand name)

a vitamin - treats Urinary tract infection, Complex regional pain syndrome, Bleeding stomach ulcers caused by aspirin, Vaginitis, Stroke prevention, Skin pigmentation disorders, Iron absorption enhancement, Cancer prevention, Common cold prevention, Exercise recovery, Heart disease prevention, Plaque/ calculus on teeth, Cataracts, Metabolic abnormalities, Asthma, Common cold treatment, Vitamin C deficiency, Nutritional support, Pregnancy, Prostate cancer, Ischemic heart disease, Helicobacter pylori infection, Pneumonia, Cancer treatment, and Skin damage caused by the sun
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Vitamin C (ascorbic acid)

Category

Herbs & Supplements

Alternate Title

Ascorbic acid

Synonyms

Antiscorbutic vitamin, ascorbate, ascorbic acid (AA), ascorbyl palmitate, calcium ascorbate, cevitamic acid, iso-ascorbic acid, l-ascorbic acid, sodium ascorbate.

Background

Vitamin C (ascorbic acid) is a water-soluble vitamin, which is necessary in the body to form collagen in bones, cartilage, muscle, and blood vessels and aids in the absorption of iron. Dietary sources of vitamin C include fruits and vegetables, particularly citrus fruits such as oranges.

Severe deficiency of vitamin C causes scurvy. Although rare, scurvy includes potentially severe consequences, and can cause sudden death. Patients with scurvy are treated with vitamin C and should be under medical supervision.

Many uses for vitamin C have been proposed, but few have been found to be beneficial in scientific studies. In particular, research in asthma, cancer, and diabetes remains inconclusive, and no benefits have been found in the prevention of cataracts or heart disease.

The use of vitamin C in the prevention/treatment of the common cold and respiratory infections remains controversial, with ongoing research. For cold prevention, more than 30 clinical trials including over 10,000 participants have examined the effects of taking daily vitamin C. Overall, no significant reduction in the risk of developing colds has been observed. In people who developed colds while taking vitamin C, no difference in severity of symptoms has been seen overall, although a very small significant reduction in the duration of colds has been reported (approximately 10% in adults and 15% in children). Notably, a subset of studies in people living in extreme circumstances, including soldiers in sub-arctic exercises, skiers, and marathon runners, have found a significant reduction in the risk of developing a cold by approximately 50%. This area merits additional study and may be of particular interest to elite athletes or military personnel.

For cold treatment, numerous studies have examined the effects of starting vitamin C after the onset of cold symptoms. So far, no significant benefits have been observed.

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