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Advancing research to scale lifestyle medicine across health systems

 ACLM develops, curates, and disseminates research and guidance that informs clinical practice, health‑system design, and policy. Our research portfolio reflects a commitment to rigorous science, transparent methodology, and real‑world applicability across treatment, reversal, and prevention of chronic disease.

Original Publications

ACLM contributes to the growing evidence base for lifestyle medicine through original research published in peer‑reviewed journals. These publications advance understanding of clinical outcomes, implementation strategies, and systems‑level impact.

Guidance Documents

ACLM develops formal guidance products to support clinicians, health systems, and organizations in applying lifestyle medicine with consistency and confidence. These documents are created using structured evidence review and expert consensus processes.

Position Statements

Position Statements articulate ACLM’s official stance on topics that shape clinical practice, professional identity, education, or public understanding of lifestyle medicine. They are used when clarity, leadership, or alignment is needed—particularly in areas of controversy, confusion, or rapid change.

Original Publications:

Guidance documents:

Expert Consensus Statements provide structured guidance when evidence is emerging, evolving, or limited, offering expert‑driven recommendations to support clinical decision‑making.

Kelly JH, Lianov L, Shurney D, et al. Lifestyle Medicine Performance Measures: An Expert Consensus Statement Defining Metrics to Identify Remission or Long-Term Progress Following Lifestyle Medicine Treatment. American Journal of Lifestyle Medicine. 2024:15598276241230237.

Rosenfeld RM, Kelly JH, Agarwal M, et al. Dietary Interventions to Treat Type 2 Diabetes in Adults with a Goal of Remission: An Expert Consensus Statement from the American College of Lifestyle Medicine. Am J Lifestyle Med. 2022;16(3):342-362.

Kelly J, Karlsen MC, Lianov L. Establishing Competencies for Physicians Who Specialize in the Practice of Lifestyle Medicine. Am J Lifestyle Med. 2020;14(2):150-154.

Grega ML, Shalz JT, Rosenfeld RM, Bidwell JH, Bonnet JP, Bowman D, Brown ML, Dwivedi ME, Ezinwa NM, Kelly JH, Mechley AR, Miller LA, Misquitta RK, Parkinson MD, Patel D, Patel PM, Studer KR, Karlsen MC. American College of Lifestyle Medicine Expert Consensus Statement: Lifestyle Medicine for Optimal Outcomes in Primary Care. Am J Lifestyle Med. 2023 Oct 25;18(2):269-293. doi: 10.1177/15598276231202970.

Merlo G, Sugden S, Rosenfeld RM, Baron D, Karlsen MC, Keyes SA, McHugh JP, Miller LA, Nemeroff CB, Ramas ME, Staffier KL, Williams KA Sr, Wilson KP, Wong WT, Viswanathan R. Lifestyle Interventions for Major Depressive Disorder (MDD): An Expert Consensus Statement From the American College of Lifestyle Medicine.

Am J Lifestyle Med. 2026 Jan 8:15598276251408353. doi: 10.1177/15598276251408353. 

Clinical Practice Guideline: Type 2 Diabetes

A comprehensive roadmap for clinicians to incorporate therapeutic behavior interventions into everyday practice.

With more than half of U.S. adults affected by diabetes or prediabetes, this urgently needed guideline delivers clear, practical recommendations—including health behavior assessments, coaching strategies, and medication de-prescribing protocols—to empower clinicians and patients alike in achieving better outcomes through lifestyle medicine.

Available now: Earn 3.75 credit hours of CME/CE/MOC with the AJLM Article & Quiz!

Learn More: Clinical Practice Guideline

Position Statements:

Clarifying ACLM’s voice on priority issues that reflect our values, are informed by evidence reviews and expert input, and are approved through formal organizational governance.

ACLM recently updated its dietary position statement to align with current evidence and best practices in Food as Medicine; this update clarifies key principles across dietary patterns, chronic disease nutrition, and care delivery. It is the position of ACLM that:

Food As Medicine

Food as Medicine (FAM), also referred to as Food is Medicine (FIM), is the use of food and nutrition interventions, guided by trained healthcare professionals, to improve health outcomes and nutrition security across the lifespan. These initiatives are supported through person-centered, culturally tailored, and collaborative decision-making. FAM may include nutrition education and counseling, culinary medicine education, behavioral support, and, in some cases, the provision of healthy food and related resources, particularly to underserved populations.

Dietary Continuum

Healthy dietary patterns exist along a continuum of food-based interventions that span from health promotion and prevention to treatment and reversal of lifestyle-related chronic disease, with variation in intensity and therapeutic dosing.

Optimal Nutrition for Chronic Disease

For the treatment, reversal, and prevention of lifestyle-related chronic diseases, an optimal dietary pattern has two key elements. First, the core diet should be centered on a wide variety of whole and minimally processed plant foods including vegetables, fruits, whole grains, legumes, mushrooms, nuts, and seeds while meeting but not exceeding energy requirements. Second, it should minimize red and processed meats, foods high in saturated fat, and ultra-processed foods containing added sugars, sweeteners, unhealthy fats/oils, refined carbohydrates, and excess sodium.

Delivery of Care

Effective implementation of Food as Medicine in clinical practice is best achieved with an interprofessional healthcare team all working within their scope of practice and trained in nutrition-related lifestyle medicine competencies. An optimal team includes registered dietitian nutritionists (RDNs) certified in lifestyle medicine.

Chronic disease clinical guidelines for multiple conditions, including overweight and obesity, promote lifestyle interventions as a first treatment. Patients’ best interests call for a compassionate, evidence-based approach addressing the six lifestyle pillars, as defined by the American College of Lifestyle Medicine (ACLM), to achieve a goal of health restoration.

These pillars include: 1.) regular physical activity, 2.) whole-food, plant-predominant nutrition, 3.) restorative sleep, 4.) stress management, 5.) positive social connection, and 6.) avoidance of risky substances; also acknowledging each individual’s lived environment and genetic predisposition, as many people live in a home or societal environment that promotes and exacerbates weight gain.

While adequately dosed lifestyle interventions may unilaterally achieve success, obesity is a complex, multifactorial disease wherein patients may require approaches beyond lifestyle alone. However, lifestyle interventions are too often not adequately “dosed” for success. Lifestyle medicine clinicians are trained to prescribe a therapeutic dose of all six pillars. Evidence supports the efficacy of these interventions in addressing the underlying causes of disease, including gut dysbiosis, endothelial dysfunction, oxidative stress, and chronic inflammation.

A comprehensive lifestyle medicine approach prevents and treats many other co-morbidities associated with overweight and obesity, including, but not limited to, hypertension, high cholesterol, heart disease, type 2 diabetes, and arthritis, and a lifestyle medicine approach can also reduce the risk of many types of cancer. Lifestyle medicine must become the foundation of comprehensive treatment, with or without surgery and/or medications as adjunctive therapies. ACLM stands ready to be a resource to help clinicians and patients in treatment of adult and pediatric overweight and obesity.

It is the position of ACLM that Intensive Therapeutic Lifestyle Change (ITLC) treatment has the following characteristics:

  1. intention of the intervention is disease remission or reversal to the greatest extent possible;
    treatment is multifactorial and multimodal, with maximal dosing;
  2. maximal dosing means using high intensity clinical encounters (frequency and duration), aiming for high patient engagement with substantive behavior change;
    appropriate monitoring and deprescribing of
  3. medications by trained professionals at intervals aligned with the intensity of intervention and rate of change patients experience, and;
  4. clinical oversight is provided by an ABLM/IBLM Certified LM Intensivist or clinician with equivalent competencies and practice standards

It is the position of the American College of Lifestyle Medicine (ACLM) that:

  1. The LM care delivery model addresses the escalating chronic disease healthcare burden;
  2. LM is a powerful catalyst for healthcare transformation that delivers the Quintuple Aim;
  3. LM is whole-person care implemented for all populations, across various settings, intensities and modalities;
  4. LM providers are trained, interdisciplinary experts in chronic disease care across the continuum, from prevention to treatment and remission of disease;
  5. Nine core elements are essential to an effective and evidence-based LM Care Framework.
It is the position of the American College of Lifestyle Medicine (ACLM) that individual and planetary health are inextricably linked, therefore:
  1. Urgent and coordinated action is required to address rapidly accelerating health impacts from the coalescing chronic disease and triple planetary crises of biodiversity loss, climate change, and environmental pollution.
  2. Lifestyle interventions offer significant reciprocal benefits for individual, community, and planetary well-being.
  3. Integrating lifestyle medicine into health care delivery promotes individual health, facilitates personal and community resilience, and reduces the environmental footprint of the health care sector.
  4. Integrating lifestyle medicine principles into health professional education, clinical care, public health initiatives, and policy frameworks is a critical strategy to ensure widespread adoption of high-quality, cost-effective, environmentally sustainable, and equitable health care that safeguards population and planetary health.

Evidence-based lifestyle changes are the cornerstone of optimal approaches to prevent, treat or reverse many non-communicable chronic conditions.

Medications may be necessary in an acute or initial diagnosis/treatment phase or when therapeutic lifestyle changes alone are inadequate.
The use of medications should be supported by robust evidence of efficacy and positive patient outcomes.

Regular reassessment and deprescribing of medications by interprofessional care teams reduces inappropriate or unnecessary medication use, minimizes adverse effects and prioritizes patient engagement in lifestyle interventions to target underlying causes of chronic disease.

Approaches that consider the whole person and prioritize person-centered care while emphasizing shared decision-making should guide both the prescribing and deprescribing of medications.

The future of lifestyle medicine 

As the leading organization shaping the field of lifestyle medicine, ACLM continues to explore what’s next – testing models, strategies, and tools that will define the future of care.   

Innovators Council 

ACLM’s Innovators Council brings together health plans, ACOs, systems, and employers to accelerate the adoption of lifestyle medicine. Members collaborate on pilot projects, share insights, and translate knowledge into scalable solutions that advance the Quintuple Aim.

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Collaborate with Us

ACLM is committed to unearthing and advancing insights that drive rapid acceleration of the field in collaboration with others. We welcome organizations that are interested in co-creating pilot projects or studies that support systemic change and improve health outcomes.

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Program Certification 

ACLM formally recognizes leading treatment and education programs that align with lifestyle medicine standards. Certified programs follow structured protocols, undergo formal evaluation by experts, and deliver measurable outcomes in the clinical delivery of lifestyle medicine.

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Current Projects

ACLM focuses on high-impact research topics that support mission advance. Examples include:

Lifestyle Medicine Implementation in Health Systems

This case series explores how health systems are successfully integrating lifestyle medicine into care delivery. By identifying key success factors, common challenges, and lessons learned, the series aims to support broader implementation in various health system contexts.  Read the Results

Health Outcomes Following Lifestyle Interventions in Primary Care

Current work includes investigation into primary care providers’ use of lifestyle treatment with diabetes patients, related changes in patients’ glucose management, and resulting changes in prescriptions for glucose-lowering medications. Additional aims include developing a framework to identify cases of deprescribing and analyzing deprescribing protocols of lifestyle medicine providers.

Shared Medical Appointments

Explore our comprehensive framework for conducting Shared Medical Appointments for patients with Type 2 Diabetes. Download Instructor Materials and Participant Guides.

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Research Grant Opportunity

This grant program is designed to encourage, support, and mentor emerging researchers who are advancing the science and practice of lifestyle medicine.

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Past Presentations

Explore hundreds of research topics as presented at ACLM’s annual conferences.

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Insights in action