Natural Health Trends Corp. provided preliminary revenue guidance for the fourth quarter and full year ended December 31, 2017. The company estimates total revenue for the fourth quarter ended December 31, 2017 to be $46.1 million, representing a decrease of 26% compared to $62.3 million in the fourth quarter of 2016 and an increase of 15% compared to $40.1 million in the third quarter of 2017. For the full year ended December 31, 2017, the company estimates total revenue to be $197.6 million, compared to $287.7 million in 2016.