wine and health

Red wine is usually credited with providing the health benefits of drinking, because so many of the compounds associated with specific biochemical properties come from the skins and seeds of the vinifera grape. Since red wine is made by fermenting the whole berry, skins, seeds and all, these molecules are extracted into the nascent wine. Resveratrol in particular is increasingly touted as the explanation for the French Paradox, despite mounting evidence that it is the combination of substances in wine working together synergistically that best fits the data. In any case, white wines and champagne get short shrift in the health story, but new evidence suggests we should take another look. It is true that champagne contains relatively little resveratrol, the miracle molecule. But it does contain two other potent antioxidants, tyrosol and hydroxytyrosol. If you are a student of the Mediterranean diet, you may have heard of these as being the principal antioxidants in olive oil. Since wine...

Although the holidays are a festive time of year, for some it can be depressing. Those with drinking problems have a particularly difficult time, and I cannot in good conscience recommend alcohol as a therapy for the seasonal blues. There is some intriguing evidence however that substances in wine can help fight depression. Two studies from the same lab at the University of Santiago in Spain looked at the activity of the wine-derived compound resveratrol, and a cousin molecule called “trans-epsilon viniferin” (which is 2 resveratrol molecules linked together) on release of the neurotransmitter serotonin. This is the same molecule that many prescription antidepressants target, and with both wine substances the levels of serotonin were elevated in the same way. Another target of antidepressants called MAO inhibitors, were similarly found to have a parallel effect from the wine derivatives. A limiting factor is that these studies were in brain tissue from rats, so it is a big leap to conc...