Understanding Metabolic Dysfunction

Metabolic dysfunction is not simply "being overweight." It is a cascade of biochemical failures centered on insulin resistance, the second root cause in the DoseCraft framework. When cells become resistant to insulin's signaling, the body compensates by producing more insulin (hyperinsulinemia). This excess insulin drives fat storage (particularly visceral fat), suppresses fat burning (lipolysis), promotes chronic inflammation, and disrupts nearly every hormonal system in the body. You can be metabolically dysfunctional at a normal weight (often called "skinny fat" or TOFI, Thin Outside Fat Inside) or metabolically healthy at an above-average weight, though this is less common.

The key biomarkers for assessing metabolic health are fasting insulin (optimal: below 5 uIU/mL), HOMA-IR (optimal: below 1.0), fasting glucose (optimal: 70-85 mg/dL), HbA1c (optimal: below 5.0%), triglyceride-to-HDL ratio (optimal: below 1.5), and waist-to-height ratio (optimal: below 0.5). Standard medical practice often does not test fasting insulin, relying instead on fasting glucose, which only becomes abnormal after years of insulin resistance. Requesting a full insulin panel is one of the most actionable steps you can take for early detection.

Restoring metabolic flexibility means returning your body's ability to efficiently switch between burning glucose and burning fat for fuel. A metabolically flexible person can fast without energy crashes, exercise without carb-loading, and maintain stable blood sugar throughout the day. Peptides play a role in this restoration, but they work best alongside foundational interventions: reducing processed carbohydrate intake, implementing time-restricted eating (at minimum a 12-hour overnight fast), and regular resistance training. Peptides accelerate the metabolic restoration process but are not a substitute for these fundamentals.