Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the inclusion in this Registration Statement on Amendment No. 3 to Form S-1 of our report dated March 30, 2026 relating to the consolidated financial statements of Change Agent Corporation’s (formerly Avalon Globocare Corp.) audit as of and for the years ended December 31, 2025 and 2024 and the reference to our firm under the caption “Experts” in the Registration Statement.

/s/ M&K CPA’s, PLLC

The Woodlands, TX

September 16, 2026