Keep in mind, that even with more fruits and vegetables in the diet, there is still need to reduce the fats, sugars and processed foods.  Keep in mind that tubers, such as potatoes and cassava are not included in fruits and vegetables.

Reference:

World Health Organization. (2004) Promoting fruit and vegetable consumption around the world. Retrieved from http://www.who.int/dietphysicalactivity/fruit/en/index.html