Proponents of a healthy diet claim that “super-foods” can prevent a wide variety of diseases. Mayo Clinic, the not-for-profit medical practice and medical research group, supports this view. Particularly as it pertains to disease prevention by adding fresh fruits, vegetables and whole grains while limiting unhealthy fats to your diet.
Heart Disease:
Fruits and vegetables are good sources of vitamins and minerals and are low in calories and rich in dietary fiber. Vegetables and fruits contain substances found in plants that may help prevent cardiovascular disease. Whole grains are good sources of fiber and other nutrients that play a role in regulating blood pressure and heart health.
Cancer Prevention:
Mayo also advises cessation of smoking, limiting consumption of alcohol to aid in the prevention of some cancers. Their recommendations also include adding fruits, vegetables while limiting high-fat foods (think processed fast foods).
Diabetes:
Rather than a restrictive diet, a diabetes diet known as medical nutrition therapy (MNT) is a healthy-eating plan. It is rich in nutrients and low in fat and calories, with an emphasis on fruits, vegetables and whole grains. Mayo’s research found: a diabetes diet is the best eating plan for most everyone.
While this sounds like common sense and physical activity is also a component: do you believe that diet can have a major impact on health?
References: Mayo Foundation for Medical Education and Research (MFMER)
Molly Grace James 
May 22, 2013 at 11:09 am
What we eat is everything~