Studies show that eating whole grains instead of refined grains lowers the risk of many chronic diseases. Although the benefits are greater for those eating at least three servings a day, some studies show reduced risks from as little as one serving a day. The recommendation is to make half of our grains whole grains. K-State Research and Extension nutrition specialist Mary Meck Higgins explains why whole grains are so good for us and how easy it is to find foods that are high in whole grains.