USANA Health Sciences, Inc. (NYSE: USNA) announced financial results for its fiscal fourth quarter and full-year ended December 29, 2018. Fourth quarter 2018 net sales were $299.0 million, compared with $273.1 million in the prior-year period, or a 9.5 percent increase year-over-year. The company’s total number of active customers increased 9.0 percent year-over-year to 616,000. […]