The first human clinical trial examining the effects of grape seed extract on metabolic syndrome found that the extract can reduce high blood pressure.
Metabolic syndrome is a combination of ailments including high blood pressure, excess abdominal weight, high blood cholesterol, and high blood sugar. As many as 40 percent of American adults, or 50 million people, may have metabolic syndrome.
Reduced Blood Pressure and Cholesterol
For the study, 24 male and female patients with metabolic syndrome were given either a placebo or grape seed extract. Those in the grape seed extract groups underwent a significant blood pressure reduction; the average drop in systolic pressure was 12 millimeters, and the average drop in diastolic pressure was 8 millimeters.Those given grape seed extract also showed reduced LDL cholesterol levels.