I saw this tweet this morning (actually, I had already read the article)...
Robyn O'Brien (@unhealthytruth) 7/18/11 7:14 AM
Preventing Cancer via Your Diet: And while Dr. Weil suggests 8 Steps, you can easily pick one or two to get started=> http://t.co/P1TUeQT


My advice: Be very skeptical about these types of claims. While the advice Dr. Weil provides will assist with living a healthy lifestyle, there are many factors that can lead to cancer. I would take this quote to heart when reading health claims:

There are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don't know we don't know. - Donald Rumsfeld
 
 
Cancer - Did you know that poor diets and sedentary lifestyles are the most significant contributors to cancer risk?

Source: The American Cancer Society

Heart Disease - This trio begins with a quartet of smoking, a junk diet, physical inactivity and obesity. Those are all things we can do something about.

Source: Heart Disease Trifecta