In the age of the internet, skepticism has become second nature. If something sounds too good to be true—especially health claims—it's probably fair to approach it with dubiousness. (I'm looking at you, targeted ads promising that one weird trick will help me completely empty my bowels.)

So, if you've heard the Mediterranean diet supposedly helps you do everything from maintaining a healthy weight to slowing down Alzheimer's disease to reducing the risk of cardiovascular disease, it's natural to have some reservations.

While the diet isn't a silver bullet, it has been shown to potentially provide all of the above benefits—studies on weight gain, Alzheimer's and heart disease are proof—and more, including, believe it or not, management of type 2 diabetes and improved erectile performance.

Diabetes and the diet