EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO SECTION 906
OF THE SARBANES-OXLEY ACT OF 2002

The undersigned hereby certifies that the Annual Report on Form 10-K of USANA Health Sciences, Inc. for the year ended December 30, 2006 as filed March 8, 2007 with the Securities and Exchange Commission, fully complies with the requirements of Section 13(a) or 15(d) of The Securities Exchange Act of 1934 (15 U.S.C. 78m) and that the information contained in the Annual Report fairly presents, in all material respects, the financial condition and results of operations of USANA Health Sciences, Inc.

Date: March 8, 2007		/s/ Myron W. Wentz
		Myron W. Wentz, PhD
		Chairman and Chief Executive Officer
		(Principal Executive Officer)