Document

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-236765) and Form S-8 (No. 333-229376, No. 333-209180, No. 333-179316 and No. 333-179315) of Post Holdings, Inc. of our report dated November 19, 2021 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.