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Heart Disease Health Center

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Does Vitamin E Prevent Heart Disease? New Research Says 'No'

WebMD Health News

Jan. 25, 2000 (New York) -- Despite favorable animal studies and some inconclusive evidence in people, a study in the Jan. 20 issue of The New England Journal of Medicine suggests that taking vitamin E supplements every day for over four years does not reduce the risk of death or heart attack in people with heart disease or diabetes.

In several studies, fruits, vegetables, and other foods containing antioxidant vitamins such as vitamin E have been associated with a reduction in the risk of heart disease and levels of 'bad' LDL cholesterol. Antioxidants prevent the formation of free radicals that cause disease.

However, the new study found no significant differences in deaths from heart disease or stroke, or in the incidence of second heart attacks or death from any cause, in men and women aged 55 or older who were randomly assigned to take either vitamin E or a placebo every day for four and a half years. Patients also received a drug (an ACE inhibitor) known as Altace (ramipril) or placebo daily. The trial was stopped last year when investigators felt they had enough evidence that Altace was beneficial and vitamin E was not.

"It is very unlikely that vitamin E had any clinically worthwhile beneficial effect on cardiovascular disease during four or five years of treatment," write Salim Yusuf, MD, and colleagues from the Heart Outcomes Prevention Evaluation (HOPE) study.

Heart attack, stroke, or death occurred in 16% of the nearly 4,800 high-risk patients in the vitamin E group and almost 16% of nearly 4,800 patients in the placebo group. There were no significant differences between the groups in the numbers of deaths from heart causes, heart attacks, deaths from coronary heart disease, or strokes. The total number of deaths that occurred also was similar in both groups, as was the number who required hospitalization for the crushing chest pain of angina, heart failure, interventional heart procedures, or limb amputations (approximately 38% of patients in each group had diabetes, which increases the risk for amputation).

The findings are consistent with those of several other studies that have shown no significant reduction in heart disease among people assigned to take large or small amounts of vitamin E daily.

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