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Wine

Wine — specifically red wine — is a traditional component of the Mediterranean diet, consumed in low to moderate amounts with meals, typically during social occasions and family dinners. The traditional Mediterranean pattern does not emphasize heavy drinking; rather, it uses wine as an accompaniment to food, generally consumed with the main meal rather than on an empty stomach.

Polyphenol Content

Red wine is a significant source of polyphenols — particularly resveratrol, anthocyanins, catechins, and quercetin — derived from grape skins and seeds during fermentation. These compounds have been extensively studied for their antioxidant and anti-inflammatory properties.

Key polyphenols in red wine: - Resveratrol: A stilbenoid studied for its effects on SIRT1 activation, cellular stress resistance, and inflammation reduction. Found in the skin of red grapes; concentrated in red wine due to extended skin contact during fermentation - Anthocyanins: Pigment compounds that give red wine its color; associated with improved endothelial function - Catechins and proanthocyanidins: Condensed tannins from grape seeds with antioxidant activity

Cardiovascular Evidence

A U-shaped (J-shaped) relationship between alcohol consumption and cardiovascular outcomes has been consistently observed:

  • Moderate consumption (approximately 1 drink per day for women, 1–2 for men): associated with 20–40% lower cardiovascular risk compared to non-drinkers and heavy drinkers in large prospective cohorts
  • Heavy consumption: associated with increased risk of hypertension, atrial fibrillation, stroke, and heart failure
  • The cardioprotective effect of moderate wine consumption is attributed to polyphenol-mediated improvements in endothelial function, anti-inflammatory effects, and modest HDL-C elevation

Mediterranean Context

In the traditional Mediterranean pattern (Crete, 1960s), wine was consumed daily with meals — typically at lunch and dinner — in amounts of 1–3 glasses per day for adult men. The pattern emphasized food-first consumption (never on an empty stomach) and was integrated into a broader lifestyle of physical activity, social meals, and minimal processed food.

Clinical Considerations

  • The 2026-acc-aha-dyslipidemia-guidelines and prior guidelines acknowledge moderate alcohol consumption as an individual consideration within overall dietary patterns
  • Wine is not recommended as a cardioprotective strategy for non-drinkers (the risk of initiating alcohol use outweighs uncertain benefits)
  • Individuals with a history of atrial fibrillation, liver disease, or certain medications should avoid alcohol entirely
  • The Mediterranean diet without wine remains cardioprotective, as demonstrated by the Lyon Diet Heart Study, which did not include alcohol recommendations