Grandmother was right: eat at least 5 servings of fruits and vegetables a day!
Researchers examined data from 16 prospective studies and found the more fruits and vegetables people ate each day, the lower their risk for all-cause mortality. Each serving was 2.8 ounces (80 grams) of fruit or vegetable. It appeared that 5 servings per day optimized the benefits. Each fruit or vegetable serving lowered the risk of cardiovascular disease by 4%.
PositiveTip: Seems the oft-heralded 5 servings a day of fruits and vegetables does reduce disease risk.