Magazine article Science News

Vitamin C May Reduce Hypertension Risk

Magazine article Science News

Vitamin C May Reduce Hypertension Risk

Article excerpt

Vitamin C may reduce hypertension risk

High blood levels of vitamin C may help ward off hypertension in healthy people, two new scientific studies suggest. If confirmed, the finding will add to this vitamin's growing renown as a dietary factor that may offer protection against cardiovascular diseases.

Scientists know that vitamin C, or ascorbic acid, can disarm chemicals called free radicals that form when the body uses oxygen (SN: 8/26/89, p.133). Free radicals can damage healthy cells, including the endothelial cells that take part in artery constriction and relaxation. Some scientists speculate that such injury may lead to hypertension -- a condition in which arteries remain constricted -- and may initiate the buildup of artery-clogging deposits, or atherosclerosis.

Now, two research teams working independently report that vitamin C seems to play a role in keeping blood pressure healthy. Both groups presented their findings this week at the the annual meeting of the American Society for Clinical Nutrition, held in Washington, D.C.

In one study, Leslie Cohen and Elaine B. Feldman at the Medical College of Georgia in Augusta and their colleagues looked at 67 healthy men and women aged 20 to 69 with normal blood pressure readings. They discovered that people in the group with the highest blood levels of ascorbic acid (about 102 micromoles per liter) had significantly lower blood pressure values than people with the lowest ascorbic acid levels (about 23 micromoles per liter). …

Search by... Author
Show... All Results Primary Sources Peer-reviewed

Oops!

An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.