A year after their acquisition of Nutrisystem, Tivity Health executives are still building the foundation for an expansion into comprehensive weight management programs for seniors and creating products that address social determinants of health for all.

The $1.4 billion Nutrisystem deal marked a bold move for Tivity, bolting weight management and social determinants in seniors and adults to its array of fitness services. The weight loss industry is estimated to be worth more than $70 billion in the United States and $420 billion globally. In 2020, more than 85 million U.S. adults are expected to seek out help in their quests to shed pounds. Should they succeed, they will lower health care spending considerably: According to the International Journal of Obesity, weight-related illnesses are responsible for nearly $190 billion in annual health care costs — almost 21 percent of medical spending in the United States.