Medifast, Inc. (NYSE: MED) reported financial results for the fourth quarter and full year ended December 31, 2018. For the fourth quarter of 2018, revenue increased 87.0 percent to $145.8 million from revenue of $78.0 million for the fourth quarter last year. OPTAVIA-branded products represented 72 percent of consumable units sold for the fourth quarter of 2018 compared to 51 […]