WASHINGTON — Timed to coincide with the traditional rush of dieting at the start of a new year, the U.S. Department of Agriculture on Dec. 22 announced the introduction of a new nutrition SuperTracker.

Described as a “comprehensive, state-of-the-art resource,” the U.S.D.A. said SuperTracker will be available at ChooseMyPlate.gov and will help individuals “as they make changes in their life to reduce their risk of chronic disease and maintain a healthy weight.” The web tool also is timed to pair up with the department’s latest consumer eating message, “Enjoy your food, but eat less.” A free, on-line tool, SuperTracker is designed to allow consumers the ability to get personalized recommendation of how much to eat and exercise, track eating and physical activity and measure progress. Customizable features include goal setting, virtual coaching, weight tracking and journaling.