Extra-virgin olive oil preserves memory, protects brain against Alzheimer's

&gt; The researchers divided the animals into two groups, one that received a chow diet enriched with extra-virgin olive oil and one that received the regular chow diet without it.<p>Wouldn&#x27;t the olive-oil mice be getting more calories?<p>Did they control against other oils?

What changes nutritionally from first press to !(virgin) oil?? Is there really a big difference, or do people just like to say &quot;Extra-virgin&quot; ?

I wonder what the route is in the brain? This is similar to the claims we hear about MCT oil.

One wonders is this is actually just a case of monounsaturated fat vs. polyunaturated &amp; saturated fats.<p>Or something truly associated with olives.