Yes, fruits and berries are good for you, but according to researchers at the Harvard School of Public Health, they are only good for you up to a point. And that point is….? Five servings a day. HealthDay reports that researchers who analyzed the results of 16 studies (involving more than 830,000 people) that looked at the connection between fruits and veggies and risk of death found that eating fruits and vegetables is linked to a lower risk of death overall, and to a reduced risk of death from heart disease. How beneficial, exactly, are fruits and berries? The risk of death from any cause drops 5 percent for each additional daily serving of fruits or vegetables, and the risk of death from heart disease seems to decrease 4 percent for each additional daily serving of fruits and vegetables. But yes, it’s true: once you’ve hit five servings of fruits and vegetables each day, additional daily servings don’t appear to boost longevity. And now the bad news: fruits and vegetables had no effect on the risk of cancer.