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Episode 130

This Fat is Increasing Your Risk of Chronic Disease

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This Fat is Increasing Your Risk of Chronic Disease

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About the host

Bret Scher, MD

Bret Scher, MD

Medical Director, Metabolic Mind and Baszucki Group

Bret Scher, MD

Medical Director, Metabolic Mind and Baszucki Group

Bret is the host of the Metabolic Mind YouTube channel and podcast. He is a board-certified cardiologist, lipidologist, and leading expert in therapeutic uses of metabolic therapies, including ketogenic diets. Prior to joining Baszucki Group, Bret was the medical director at DietDoctor.com, an online platform promoting improving metabolic health through low-carb nutrition, where he was a content creator and medical reviewer. Earlier in his career, he worked as a cardiologist in San Diego. Bret has spent most of his 20-year career as a preventive cardiologist, helping people improve their metabolic health and preventing heart disease using low-carb nutrition and lifestyle interventions. His deep passion for educating the public about the benefits of metabolic therapies grew from his experience with the prevailing medical teaching, which frequently misrepresents nutrition science and undervalues metabolic health. Bret received an MD from The Ohio State University College of Medicine and a BS in Biology from Stanford University. He grew up in San Diego and began competing in triathlons at an early age, which helped fuel his love of health and fitness. He continues to enjoy spending time outdoors mountain biking, swimming, hiking, and playing baseball with his two boys.
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About the guest

Sean O'Mara, MD

Sean O’Mara, MD

Physician

Sean O’Mara, MD

Physician

Dr. Sean O’Mara, MD is an emergency physician and former U.S. Army ER doctor who now focuses his clinical work and research on visceral and epicardial fat as key drivers of chronic disease. For more than a decade, he has advocated for using imaging such as CT and MRI to identify visceral fat and for lifestyle-based strategies to reduce it, including whole-food nutrition, targeted exercise, and fasting protocols.

Key Highlights

  • Dr. Sean O’Mara argues visceral fat should be treated as a diagnosable disease process, not an incidental finding, and says it is widely underrecognized because it is not emphasized in medical training or routinely reported in radiology reads.
  • The discussion distinguishes visceral fat from subcutaneous fat, describing visceral fat as metabolically active tissue that releases inflammatory signaling molecules with systemic effects.
  • O’Mara emphasizes epicardial fat as a major concern, describing it as inflammatory fat around the heart that may influence coronary disease risk, and he also references research suggesting visceral fat can impair aspects of immune surveillance.
  • They note CT and MRI can visualize visceral and epicardial fat, and that many people may already have usable imaging from prior abdominal studies that includes enough anatomy to assess these fat depots, even if the original report did not comment on them.
  • O’Mara claims rapid improvements can occur with dietary changes focused on whole foods and removing ultra-processed foods, and he advocates for sprint-style training, sleep and stress optimization, and a gradual fasting approach paired with adequate protein and nutrient-dense eating on non-fasting days.

Transcript

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