United States securities and exchange commission logo February 5, 2021 Matthew T. Plavan President and Chief Executive Officer Arcadia Biosciences, Inc. 202 Cousteau Place, Suite 105 Davis, CA 95618 Re: Arcadia Biosciences, Inc. Registration Statement on Form S-3 Filed February 2, 2021 File No. 333-252659 Dear Mr. Plavan: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Jordan Metoyer at 202-551-6001 or Tim Buchmiller at 202-551-3635 with any questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: Michael De Angelis, Esq.