SunOpta (STKL) 10-Q 2008 Q2 Quarterly report

Exhibit 32

CERTIFICATION

PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the quarterly report of SunOpta Inc. (the “Company”), on Form 10-Q for the period ended June 30, 2007 (the “Report”), I, Steve Bromley, President and Chief Executive Officer of the Company and I, John Dietrich, Vice President and Chief Financial Officer of the Company, each certify pursuant to 18 U.S.C. Section 1350, that to our knowledge:

1.

the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.

the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

A signed original of this written statement has been provided to the Company and will be retained by the Company and furnished to the SEC or its staff upon request.

Date:

August 3, 2007

/s/ Steve Bromley    

Steve Bromley

President and Chief Executive Officer

SunOpta Inc.

/s/ John Dietrich     

John Dietrich

Vice President and Chief Financial Officer

SunOpta Inc.

The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and should not be deemed to be filed under the Exchange Act by the Company or the certifying officer.