POWER OF ATTORNEY



Know all by these presents, that the undersigned hereby constitutes and appoints each of Michelle P. Goolsby, Steven K.

Kemps,Angela B. Miro and Katherine K. Connell the undersigned's true and lawful attorney-in-fact to:



1. execute for and on behalf of the undersigned, in the undersigned's capacity as an executive officer

        and/or director of Dean Foods Company (previously known as Suiza Foods Corporation) (the "Company"),

        Forms 3, 4 and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder;



2. do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable

        to complete and execute any such Forms 3, 4 or 5 and file such form with the United States Securities and

        Exchange Commission and any stock exchange or similar authority; and



3. take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such

        attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned,

        it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant

        to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact

        may approve in such attorney-in-fact's discretion.



The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act

and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein

granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power

of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's

substitute or substitutes, shall lawfully do or cause to be done, or shall lawfully have already done or caused to be done,

by virtue of this power of attorney and the rights and powers herein granted.  The undersigned acknowledges that each of the

foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, is not assuming, nor is the

Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934,

as amended.



This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4

and 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier

revoked by the undersigned in a signed writing delivered to the foregoing attorney-in-fact.



IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this __th day of May 2006.



(Signature)



John F. Callahan, Jr.

Typed Name