WASHINGTON — The U.S. Department of Agriculture has added a new feature to its SuperTracker diet and physical activity planner that allows users to set personal calorie goals based on targets prescribed by their nutritionists, dietitians and health care providers.

“With one in three Americans overweight or obese, resources like SuperTracker play a critical role in helping people to develop good health and nutrition habits,” said Kevin Concannon, Agriculture Undersecretary for Food, Nutrition and Consumer Services. “This update allows individuals to set goals tailored to their specific needs and improve their overall health and well-being.”

SuperTracker, which is maintained by the U.S.D.A.’s Center for Nutrition Policy and Promotion, is free to use and available at ChooseMyPlate.gov.

SuperTracker assigns users a calorie level based on information entered in their user profile such as age, height, weight and physical activity level. The new feature allows users to tailor their diet and exercise regimens to fit calorie target recommendations made by their physician. To access the new personal calorie goal feature, go to SuperTracker and click on My Features (My Top 5 Goals).

SuperTracker was unveiled in December 2011 as a complement to the MyPlate nutrition guidance initiative and First Lady Michelle Obama’s Let’s Move! initiative.