On this episode of Feel Better Live More, host Dr. Rangan Chatterjee interviewed Dr. Florence Comite, a US endocrinologist and longevity expert with 30 years of clinical experience at Yale and the National Institutes of Health. The conversation centered on Comite's new book Invincible and her paradigm-shifting approach to preventative medicine, which treats patients proactively before disease manifests rather than reactively after diagnosis. Comite revealed that none of her patients have experienced a heart attack while on her protocol, a remarkable claim that underscores her focus on early intervention. The core of her methodology involves tracking five key biomarkers—fasting glucose, hemoglobin A1C, fasting insulin, cholesterol risk ratio, and free testosterone—which she argues can predict and reverse chronic disease decades before symptoms appear. She made the controversial assertion that fasting insulin, a marker almost never checked in routine care, changes decades before diabetes diagnosis and that she has never found a patient with all five biomarkers in optimal range. Comite challenged conventional medicine's reliance on population averages and normal ranges, advocating instead for individualized N=1 medicine that tracks personal trends over time. She argued that virtually everyone will develop carbohydrate metabolism disorders as they age due to declining testosterone and muscle mass, and that lifestyle optimization alone cannot restore hormones to optimal levels. The discussion covered her extensive use of testosterone replacement in both men and women starting in their 30s, including HCG peptide therapy to stimulate natural production, and her advocacy for continuous glucose monitors as essential tools for personalized health data. Comite also critiqued current healthcare systems in both the US and UK as disease-management models rather than health-creation systems, and shared her vision for virtual medicine delivered through apps that provide credentialed, scientific guidance at scale. The episode concluded with her call for individuals to take ownership of their health trajectory by understanding their biomarker trends and making proactive changes to defy their genetic destiny.
Dr. Comite explained that fasting insulin levels rise decades before type 2 diabetes becomes clinically apparent, yet this marker is almost never measured in routine medical care. She stated she has never found a patient with all five of her key biomarkers in optimal range, suggesting widespread undiagnosed metabolic dysfunction across the population.
Read this moment →Dr. Florence Comite, a US endocrinologist with 30 years of experience, revealed that none of her patients have experienced a heart attack while following her preventative health program, which focuses on five key biomarkers and proactive intervention. This represents a remarkable outcome in preventative medicine, suggesting that early detection and treatment of metabolic dysfunction can prevent cardiovascular events.
Read this moment →Dr. Comite made the provocative claim that virtually everyone is susceptible to carbohydrate metabolism disorders as they age, driven by declining hormones particularly testosterone that builds muscle which packages sugar. This challenges the conventional view that type 2 diabetes affects only a subset of the population with specific risk factors.
Read this moment →Contradicting popular fitness advice, Dr. Comite stated that while poor sleep and stress can lower testosterone, optimizing lifestyle factors cannot raise testosterone to optimal levels once age-related decline begins. She argues that while lifestyle optimization helps, most men and women will require hormone replacement or peptides like HCG starting in their 30s to maintain metabolic and cognitive health.
Read this moment →Dr. Comite advocates for a hemoglobin A1C target of under 5, significantly lower than current medical guidelines which consider up to 5.6 normal and 5.7-6.4 prediabetic. She cited literature showing that each tenth of a point increase above 5.0 dramatically raises the risk of chronic disease and all-cause mortality, challenging standard preventative care thresholds.
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