Headline:
Moderate Wine Intake Tied to Lower Cardiovascular Risk in High-Risk Populations
Article:
Drinking a moderate amount of wine daily could significantly decrease the risk of severe cardiovascular diseases in high-risk individuals following a Mediterranean diet, according to a Spanish study published in the European Heart Journal. The research, led by Ramon Estruch from the University of Barcelona and Hospital Clinic Barcelona, provides compelling evidence that supports the health benefits of moderate wine consumption when integrated into a balanced diet.
Previously, studies on wine’s impact on cardiovascular health produced contradictory results, partly due to reliance on self-reported wine intake. The new study, part of the larger PREDIMED trial, introduced an innovative approach by measuring the concentration of tartaric acid, a wine metabolism byproduct, in urine samples. This objective biomarker offers a more reliable measure of wine consumption than questionnaires.
The PREDIMED trial recruited 1.232 participants at a heightened risk of cardiovascular disease due to diabetes or multiple risk factors, such as smoking, obesity, and family history. After four to five years, 685 cardiovascular events were recorded. Among these individuals, who adhered to a Mediterranean diet rich in olive oil, nuts, fruits, and fish, moderate wine drinkers had a 50% lower risk of cardiovascular events compared to light drinkers or non-wine drinkers.
Light drinking, defined as one glass per week to less than half a glass daily, reduced cardiovascular risk by 38%. However, consuming more than one glass per day did not offer additional protection and may increase health risks. Estruch acknowledged that the study demonstrates only an association, not causation, and multiple factors influence cardiovascular health.
"Measuring tartaric acid levels in urine, along with dietary questionnaires, allowed us to more accurately assess wine consumption," said Estruch. "We found a much stronger protective effect of wine than previously observed, equivalent to the risk reduction achieved with some medications, such as statins."
Estruch emphasized that the study highlights the importance of moderate wine consumption within a healthy diet, like the Mediterranean diet. The findings suggest that more than 20% of the Mediterranean diet’s beneficial effects could stem from moderate wine consumption.
However, Estruch noted that results may not apply to other populations, and research should address the acceptable age for moderate wine consumption and potential differences between men and women. Giovanni de Gaetano, from the IRCCS NEUROMED in Pozzilli, Italy, and colleagues, articulated in an accompanying editorial that this study offers valuable insights into the complex relationship between wine, alcohol consumption, and cardiovascular health.
"The use of an objective biomarker such as urinary tartaric acid provides a more accurate measure of wine consumption and reinforces the association between moderate wine intake and lower cardiovascular risk," concluded Domínguez-López and colleagues.
While the study advances our understanding of wine’s impact on cardiovascular health, it also underscores the need for further research to capture the multifaceted nature of dietary patterns and lifestyle factors. As Estruch stressed, ongoing exploration of objective biomarkers will help unravel the intricate connections between nutrition, lifestyle, and health outcomes.
