Washington Post: Fruit and Vegetable ‘Prescriptions’ May Lead to Better Heart Health

Kevin G.M. Volpp, the director of the Center for Health Incentives andBehavioral Economics at the University of Pennsylvania, said studies like Hager’s cannot serve as proof that these programs lead to an improvement in blood pressure or blood sugar levels. “We really need randomized trials to answer that question more systematically,” Volpp said.

Eating a wide-ranging diet of fruits, vegetables, whole grains and legumes will probably improve your health. However, “we can’t really precisely estimate” how much produce someone should eat per day without more rigorous data, Volpp said.