Think of food variety as a nutrition coalition. Change doesn't always mean eliminating a food or food habit. Make gradual changes. For example, try one new fruit or vegetable a week. Focus more on moderation and balance.
Hogan recommends learning portion sizes.
One extra benefit of a diet rich in fruits, vegetables and whole grains is that it may help people achieve and maintain a healthy weight, according to Hogan. These foods, she said, are high in fiber and low in fat and can help satisfy hunger without many calories. In addition to eating a variety of foods, Hogan and other registered dietitians encourage people to balance what they eat with physical activity.