I found this little illustration that has a pretty good summary of the pros and cons of coffee consumption. Coffee is the most consumed beverage in the world and is the go-to source for office employees to get through their days. But besides energy, coffee provides a plethora of other benefits, which are outlined below.

coffee consumption

As far as coffee being able to reduce the risk of certain disorders, here are some of the sources:

However, keep in mind that some of these studies found a positive association. But as always, correlation does not imply causation. Many of these studies concluded an inverse relationship between coffee consumption and the mentioned diseases - but falls short of recommending coffee consumption to reduce risk of certain diseases. But that is how clinical studies are - they don't quite make recommendations; the only objective of the study is to prove their hypothesis.