Exhibit 24

                                POWER OF ATTORNEY

                      FOR SECTION 16 REPORTING OBLIGATIONS

                                August 12, 2023

    KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints each of Norma Barnes-Euresti, Gordon Paulson, Stephanie White and
Evelyn Pollard, signing singly, the undersigned's true and lawful attorney-in-
fact to:

        (i)   execute for and on behalf of the undersigned, in the
              undersigned's capacity as an officer and/or director and/or owner
              of greater than 10% of the outstanding common stock of WK Kellogg
              Co, a Delaware corporation (the "Company"), Forms 3, 4 and 5
              (including any amendments, supplements or exhibits thereto) in
              accordance with Section 16(a) of the Securities Exchange Act of
              1934 and the rules thereunder;

        (ii)  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 Form 3, 4 or 5 (including any amendments,
              supplements or exhibits thereto) and timely file such form with
              the United States Securities and Exchange Commission (the "SEC")
              and any stock exchange or similar authority, including without
              limitation the filing of a Form ID or any other documents
              necessary or appropriate to enable the undersigned to file the
              Form 3, 4 and 5 electronically with the SEC;

        (iii) seek or obtain, as the undersigned's representative and on the
              undersigned's behalf, information on transactions in the
              Company's securities from any third party, including brokers,
              employee benefit plan administrators and trustees, and the
              undersigned hereby authorizes any such person to release any such
              information to each of the undersigned's attorneys-in-fact
              appointed by this Power of Attorney and ratifies any such release
              of information; and

        (iv)  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 by virtue of this power of attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are 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.

    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 attorneys-in-fact.

    IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of the date first written above.


Signed and acknowledged:

/s/ Bruce Brown
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Bruce Brown