o Transition report under Section 13 or 15(d) of the Securities Exchange Act of 1934 for the transition period from to . Commission file number 001-34483 NATURE'S SUNSHINE PRODUCTS, INC. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _________________________________________ FORM 10-K x Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the fiscal year ended December 31, 2018 OR (Exact name of Registrant as specified in its charter) (State or ot ...