Medifast, Inc., through its subsidiaries, operates as a health and wellness company that provides habit-based and coach-guided lifestyle solutions to address obesity and support a healthy life in the United States. The company offers weight loss and weight management plans; and GLP-1 support plans that provide access to GLP-1 medications where clinically appropriate under the OPTAVIA brand name. It also provides bars, puffs, cereal, crunchers, drinks, hearty choices, oatmeal, pancakes, pudding, soft serve, shakes, smoothies, soft bakes, and soups, as well as provides coaching support along with community, nutrition, and healthy habits, and helps people in their weight loss journey. It markets its products through point-of-sale transactions, as well as through ecommerce platform.