EXHIBIT 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Form 10-Q of Dean Foods Company (the “Company”) for the quarter ended March 31, 2006, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Ronald L. McCrummen, Senior Vice President and Chief Accounting Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934, as amended, and the information contained in the Report fairly presents in all material respects, the financial condition and results of operations of the Company.

/s/ Ronald L. McCrummen 

Ronald L. McCrummen

Senior Vice President and Chief Accounting

Officer

May 10, 2006

Note: This certification accompanies the Report pursuant to Section 902 of the Sarbanes-Oxley Act of 2002 and shall not be deemed filed, except to the extent required by the Sarbanes-Oxley Act of 2002, by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.