 SALT LAKE CITY--BUSINESS WIRE--USANA Health Sciences, Inc. NYSE:USNA today announced that fourth quarter results will be released after the close of market Tuesday, February 9, 2021. Shortly following the issuance of the Companys earnings release, the Company will post a Management Commentary, Results and Outlook document on the Companys website under the Investor Relations section of the site. The following morning at 11:00 a.m. Eastern Time, USANA will hold a c 