Medifast, Inc. is an American nutrition and weight loss company based in Owings Mills, Maryland. The company owns five subsidiaries: Jason Pharmaceuticals, Inc. (Jason), Take Shape for Life, Inc. (TSFL), Jason Enterprises, Inc., Jason Properties, LLC and Seven Crondall, LLC. Medifast produces, distributes, and sells weight loss and other health-related products through websites, multi-level marketing, telemarketing, franchised weight loss clinics, and medical professionals. The company is public with a market capitalization of $405 million, as of October 2014. Medifast was founded in 1980 by William Vitale, a medical doctor. His products were sold directly to other doctors, who in turn prescribed them to their patients.