It always surprises me when people focus on one small part of a diet that they hope is some kind of super-cure (or in this case, they want an excuse to drink red wine more often). Of course red wine on it's own isn't going to do anything for you, it's your entire diet and lifestyle that matters. Look at the real reasons (which studies like this one do not mention at all) the French likely have less heart disease and are in better shape than most Americans:
- They eat significantly smaller portions
- They take much longer to eat their meals (resulting in eating much less, because you know you're full)
- There is a focus on quality food and cooking, which results in better ingredients used
- The focus on quality means a focus on freshness, which leads to less processed food (especially refined carbs) being consumed
- The french walk and ride bikes much more than their average American counterpart