About The Lead Author

Dr. Landen Green is a primary care physician practicing within a Direct Primary Care model. His clinical approach integrates evidence-based medicine with a focused interest in preventive care, lifestyle medicine, supplementation science, and emerging therapeutic strategies.

He chose the Direct Primary Care model to foster a patient-centered clinical environment that prioritizes time, accessibility, and continuity. This structure allows for in-depth discussions regarding risk–benefit considerations, shared decision-making, and patient education — particularly in areas where evidence may be evolving, heterogeneous, or frequently misunderstood. Central to this philosophy is the obligation to act in the patient’s best medical interest, independent of the competing pressures of third-party payers and administrative constraints.

In addition to clinical practice, Dr. Green has participated in the development of several healthcare and wellness ventures, informing his perspective on innovation, patient behavior, and the evolving direct-to-consumer health economy. These initiatives have included roles across primary care, urgent care, fitness and nutrition, mental health, travel wellness, and continuing education.

Dr. Green has extensive experience clinically reviewing thousands of dietary supplements and consumer health products across a broad range of brands. His evaluations include providing structured clinical feedback to top manufacturers, frequently informing formulation refinements and safety considerations. This work has involved the review of complex formulations and proprietary ingredient systems, contributing to his understanding of formulation strategy, safety evaluation, and claim–evidence alignment within the supplement industry. When products are deemed to be unfit for the general marketplace without clinician oversight, Dr. Green issues structured clinical evaluations identifying safety, dosing, or formulation concerns. In many instances, manufacturers have modified product formulations following these assessments.

Dr. Green serves in advisory and evaluation roles within the dietary supplement industry. These activities inform his clinical perspective but do not influence the independent evaluations presented in this text.

Originally from North Carolina, Dr. Green developed an early interest in human performance, physiology, and injury through a background in athletics. He earned his Bachelor of Arts in Athletic Training from the University of North Carolina Wilmington before pursuing osteopathic medical training at the Campbell University School of Osteopathic Medicine, where he obtained his Doctor of Osteopathic Medicine degree.

Dr. Green’s professional interests include cardiometabolic health, longevity medicine, risk reduction, and the thoughtful integration of dietary supplements and innovative therapies into clinical practice. He maintains a focused interest in the clinical, physiological, and safety complexities surrounding supplementation and innovative interventions — balancing their potential benefits and remarkable potential with their limitations and unintended consequences. His work emphasizes careful evaluation through the lenses of evidence quality, patient individualism, biological plausibility, safety, dose realism, and patient-specific risk.

As a primary care physician, his medical training has been focused primarily on “evidence-based” medicine. This means that Dr. Green typically follows guidelines from the US Preventive Services Task Force, American Academy of Family Physicians, the American Academy of Pediatrics, etc. He also acknowledges that Western Medicine does not always have the complete solution, though prescription medications have their role in modern healthcare, he supports many types of complementary and alternative medicine. Dr. Green simultaneously adheres to the “first do harm” hippocratic oath and has a belief that this pertains to not only treatments but to financial harm.

His main philosophy is centered around four main components:

He strongly believes in the body’s natural ability to heal itself. Dr. Green frequently emphasizes the need for proper nutrition, hydration, sleep, oxygenation, and physical activity to optimize the body’s environment and best promote healing and health.
He knows each aspect of a person’s life is interconnected and reflects on their health. Mental health contributes to physical health and vice-versa. Occupation, living arrangements, personal culture, socioeconomic status, family and childhood, spiritual habits, social engagement, and many other factors all play a role in health. He respects the mind-body-spirit-social-economic-occupational connection and how it can affect a person’s health
Every specific situation has it’s own unique risks, benefits, and alternatives with each unique patient. Experience has taught him that his job is not to make one-sided medical decisions for the patient; instead, his goal is to lead into a discussion centered around shared decision-making with presonalized, evidence-based risk-benefit stratification.
Dr. Green believes in the power of education—when patients know more about a condition, medication, or treatment, they become more engaged and more likely to follow-through with the care plan. He strongly believes spending more time with patients and developing a great doctor-patient relationship leads to better outcomes and that the old adage, “an ounce of prevention is worth a pound of cure” should be at the forefront of a patient’s care plan.

This book reflects these perspectives.