“Rough up” your diet. Include a variety of high-fiber foods every day, such as raw fruits and vegetables and whole grains. These foods help cut down on constipation; provide the vitamins, minerals, fiber, and nutrients that you need for healthy aging; help maintain your weight; and reduce your risk of heart problems. If you’re not sure you’re getting enough fiber, talk to your doctor about supplements.
While one highly publicized study suggested that those who are moderately overweight have slightly longer lifespans, other studies, such as this one at Oxford University, associated being moderately overweight with a decreased lifespan. The overweight, or obese, are said to experience lifespans 10 years less than average according to the Oxford study.