Metabolic dysfunction is the hidden root of most chronic disease

Means's central claim is that conditions modern medicine treats as separate diagnoses — type 2 diabetes, obesity, heart disease, depression, PCOS, erectile dysfunction, Alzheimer's, many cancers — are frequently downstream expressions of one shared upstream problem: cells that have lost the ability to efficiently convert food into usable energy, a state she groups under the umbrella of metabolic dysfunction.

Rather than treating each condition with a separate specialist and a separate drug, she argues doctors should be asking a more basic question first: is this patient's metabolism working? Her claim, drawing on markers like insulin resistance, waist circumference, and triglyceride-to-HDL ratio, is that a striking majority of American adults already show at least one sign of metabolic impairment, frequently invisible on a standard annual physical.

This reframing matters because it suggests a single, addressable target — metabolic health — sits upstream of many of the diseases people fear most, rather than each disease being its own unrelated bad luck.

Takeaway: before chasing separate treatments for separate symptoms, ask whether an underlying metabolic problem might be driving several of them at once.