Vitamin C (Ascorbic Acid)

Written by HealthyPlace.com Staff Writer

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Vitamin C may help prevent Alzheimer's Disease and dementia, heart disease and diabetes. Learn about the usage, dosage, side-effects of Vitamin C.

Overview

Vitamin C is a water-soluble vitamin needed for the growth and repair of tissues in all parts of the body. It is necessary to form collagen, an important protein used to make skin, scar tissue, tendons, ligaments, and blood vessels. Vitamin C is essential for the healing of wounds, and for the repair and maintenance of cartilage, bones, and teeth.

Vitamin C is one of many antioxidants. Vitamin E and beta-carotene are two other well known antioxidants. Antioxidants are nutrients that block some of the damage caused by free radicals, which are by-products that result when our bodies transform food into energy. The build up of these by-products over time is largely responsible for the aging process and can contribute to the development of various health conditions such as cancer, heart disease, and a host of inflammatory conditions like arthritis. Antioxidants also help reduce the damage to the body caused by toxic chemicals and pollutants such as cigarette smoke.

Vitamin C deficiency can lead to dry and splitting hair; gingivitis (inflammation of the gums) and bleeding gums; rough, dry, scaly skin; decreased wound-healing rate, easy bruising; nosebleeds; weakened enamel of the teeth; swollen and painful joints; anemia; decreased ability to ward off infection; and, possibly, weight gain because of slowed metabolic rate and energy expenditure. A severe form of vitamin C deficiency is known as scurvy, which mainly affects older, malnourished adults.

The body does not manufacture vitamin C on its own, nor does it store it. It is therefore important to include plenty of vitamin C-containing foods in one's daily diet. Large amounts of vitamin C are used by the body during any kind of healing process, whether it's from an infection, disease, injury, or surgery. In these cases extra vitamin C may be needed.

Vitamin C Uses

Low levels of vitamin C have been associated with a variety of conditions including hypertension, gallbladder disease, stroke, some cancers, and atherosclerosis (the build up of plaque in blood vessels that can lead to heart attack and stroke; conditions that are caused by atherosclerotic build up are often collectively referred to as cardiovascular diseases). Eating adequate amounts of vitamin C in the diet (primarily through lots of fresh fruits and vegetables) may help reduce the risk of developing some of these conditions. There is little evidence, however, that vitamin C supplements can cure any of these diseases.

As an anti-oxidant, vitamin C plays an important role in protecting against the following:

Heart Disease
Results of scientific studies regarding the benefit of vitamin C for heart disease or stroke is somewhat confusing. While not all of the studies agree, some information suggests that vitamin C may help protect blood vessels from the damaging effects that lead to or result from the presence of atherosclerosis.

For example, those with low levels of vitamin C may be more likely to have a heart attack, stroke, or peripheral artery disease, all potential outcomes of atherosclerosis. Peripheral artery disease is the term used to describe atherosclerosis of the blood vessels to the legs. This can lead to pain with walking, known as intermittent claudication.

In terms of damage that can cause atherosclerosis, some studies have shown that vitamin C helps prevent oxidation of LDL (bad) cholesterol - a process that contributes to plaque buildup in the arteries.

Under most circumstances, dietary vitamin C is adequate for protecting against the development of or consequences from cardiovascular disease. If you have low levels of this nutrient, however, and find it difficult to obtain through dietary sources, a knowledgeable healthcare provider may recommend vitamin C supplements.

High Cholesterol
Information from several studies, involving only small numbers of people, suggest that vitamin C (3 glasses of orange juice per day or up to 2000 mg per day as a supplement) may help decrease total and LDL cholesterol and triglycerides, as well as increase HDL levels (the good kind of cholesterol). Studies evaluating larger groups of people would be helpful in determining how accurate these preliminary research results are and to whom this potential benefit applies.