Objective: To focus on the intersection of perception, diagnosis, stigma, and weight bias in the management of obesity and obtain consensus on actionable steps to improve care provided for persons with obesity., Methods: The American Association of Clinical Endocrinology (AACE) convened a consensus conference of interdisciplinary health care professionals to discuss the interplay between the diagnosis of obesity using adiposity-based chronic disease (ABCD) nomenclature and staging, weight stigma, and internalized weight bias (IWB) with development of actionable guidance to aid clinicians in mitigating IWB and stigma in that context., Results: The following affirmed and emergent concepts were proposed: (1) obesity is ABCD, and these terms can be used in differing ways to communicate; (2) classification categories of obesity should have improved nomenclature across the spectrum of body mass index (BMI) using ethnic-specific BMI ranges and waist circumference (WC); (3) staging the clinical severity of obesity based on the presence and severity of ABCD complications may reduce weight-centric contribution to weight stigma and IWB; (4) weight stigma and internalized bias are both drivers and complications of ABCD and can impair quality of life, predispose to psychological disorders, and compromise the effectiveness of therapeutic interventions; (5) the presence and of stigmatization and IWB should be assessed in all patients and be incorporated into the staging of ABCD severity; and (6) optimal care will necessitate increased awareness and the development of educational and interventional tools for health care professionals that address IWB and stigma., Conclusions: The consensus panel has proposed an approach for integrating bias and stigmatization, psychological health, and social determinants of health in a staging system for ABCD severity as an aid to patient management. To effectively address stigma and IWB within a chronic care model for patients with obesity, there is a need for health care systems that are prepared to provide evidence-based, person-centered treatments; patients who understand that obesity is a chronic disease and are empowered to seek care and participate in behavioral therapy; and societies that promote policies and infrastructure for bias-free compassionate care, access to evidence-based interventions, and disease prevention., Competing Interests: Disclosures The Task Force was empaneled in accordance with AACE Conflict of Interest (COI) Policy and approved by the AACE COI Subcommittee. All members of the expert Task Force completed AACE’s disclosure form regarding any multiplicities of interests related to commercial and direct financial relationships within the preceding 12 months with companies that develop products connected with endocrine disorders. Categories for disclosure include employment, stock or other ownership, direct financial relationships (eg, speaker or consultant), research funding, authorship or panel involvement on a guidance document related to an overlapping topic, or other situations related to a perceived COI. The AACE COI Subcommittee reviewed these disclosures against an AACE-approved list of ineligible companies for this consensus statement and reached consensus regarding members who could serve on the Task Force in the nonconflicted majority, those who could serve in the conflicted minority with management strategy, and those who were disqualified from serving on the Task Force. The AACE CPG Oversight Committee reviewed and approved the AACE COI Subcommittee’s decisions regarding manageable COI and empanelment. Members of this Task Force were reminded to update potential disclosures if new potential conflicts arose during their appointments and to verify currency of disclosures. AACE made every effort to minimize the potential for conflicts of interest that could influence the recommendations of this CPG. Disclosures related to obesity are provided below; however, none were deemed as conflicts of interest as there were no discussions of treatment or management options in the development of the consensus statement. B.A. serves on speakers’ bureaus for Astra Zeneca, Corcept, Eli Lilly, and Novo Nordisk. J.A. serves on advisory boards for Eli Lilly and Novo Nordisk. W.G. serves as a volunteer consultant on advisory boards for Jazz Pharmaceuticals, Boehringer Ingelheim, Eli Lilly, Novo Nordisk, and Pfizer without financial compensation, serves on advisory boards for Alnylam Pharmaceuticals, Boehringer Ingelheim, Eli Lilly, Fractyl Health, and Novo Nordisk with financial compensation, and receives research support as a site principal investigator for clinical trials sponsored by his institution and funded by Eli Lilly, Novo Nordisk, Epitomee, and Pfizer. T.K. is the owner of Ted Kyle Consulting, LLC and a consultant for Gelesis, Johnson & Johnson, Novo Nordisk, and Nutrisystem. K.N., M.A., M.B., and M.C. have nothing to disclose., (Copyright © 2023 AACE. Published by Elsevier Inc. All rights reserved.)