The study showed that men with high risk of heart disease drink 2 cups (10 ounces, about 284 grams) of alcohol-free red wine every day. After 4 weeks, blood pressure is significantly reduced and the risk of heart disease is reduced.
Researchers at the University of Barcelona in Spain studied 67 male participants who had diabetes or were at risk for more than three cardiovascular diseases. Participants were randomly divided into 3 groups, in addition to the normal diet, 10 ounces of red wine, non-alcoholic red wine or 3 ounces (about 85 grams) of gin. All participants received a normal diet plus different drinks for 4 consecutive weeks. In red wine and non-alcoholic red wine, the level of polyphenols with antihypertensive properties is the same.
It was found that during the red wine testing period, the blood pressure of the males in the test was small; when drinking the gin, there was almost no change in blood pressure. However, after drinking alcohol-free red wine, the systolic and diastolic blood pressures of the participants decreased by 6 mm Hg and 2 mm Hg, respectively, which was equivalent to a 14% and 20% reduction in heart disease and stroke risk, respectively.
The new research director Dr. Goma Chiva Blanche analyzed that alcohol in red wine can impede the antihypertensive effect of polyphenols, while alcohol-free red wine can increase the level of nitric oxide in patients. Nitric oxide molecules in the body help to relax blood vessels, while reducing systolic and diastolic blood pressure and increasing blood flow to major organs such as the heart.
Alcohol-free wines are not completely alcohol-free, but alcohol content is mostly less than 0.5%. On the palate, there is both a dry red alcohol and a sweet wine, which is a combination of the two. Alcohol-free wines are also different from ordinary grape juices and need to be de-alcoholized by special processes such as fermentation, storage, aging, and impurity removal. Alcohol-free wines are rich in nutrients, and the eight amino acids and resveratrol contained in the wine are several times higher than ordinary wines, and have a very high nutritional health effect.