Let's take a look:

We've long heard that the Mediterranean Diet has been good for the heart. It's rich in fruits, vegetables, whole grains, nuts, wine and olive oil. In other words, it's loaded with "good" fats. So far there's been nothing ti disprove that. But some had thought that such a diet had to be good for the brain too.

Now a new French study published in the American Journal of Clinical Nutrition found little benefit from the diet to aging brains. The study examined dietary patterns of middle aged people and then checked their brains at around age 65. Researchers say they found no connection between eating the Mediterranean Diet and brain function.

It had been suggested that low saturated fats and high fiber in the diet could help stave off cognitive decline indirectly by keeping blood vessels healthy. One such study was in the American midwest and another in Manhattan.

French researchers say they found that those on the Mediterranean Diet performed about the same as those on a non-restrictive diet.

Conclusion: Fact (at least according to this latest study)

For more interesting reading, I invite you to check out Brian Mudd's Cheat Sheet:

http://www.wjno.com/pages/brianmudd.html