Evidence-dense health optimization

Health Canon

Section

Metabolic Health

Glucose, iron, and fats — mechanisms with evidence grades, not diet wars.

Metabolic health is how your body handles energy, glucose, iron, and related pathways over years — not a single lab result or influencer protocol. This section covers insulin resistance and diabetes prevention, the contested seed-oil literature, hereditary iron overload, MTHFR gene–nutrient interactions, and where experimental tools like red light sit relative to standard of care. Lifestyle still anchors outcomes: progressive resistance training, sleep, and durable dietary patterns beat unmonitored extremes.

  1. Metabolic Health

    Screening for Iron Overload: Step by Step (2026)

    Ferritin+TSAT sequence, inflammation context, HFE when indicated—screen without portal panic.

    MARCUS CHEN 14 MIN READ

  2. Metabolic Health

    Insulin Resistance: Your First 90 Days (2026)

    Confirm labs, build lifting + walks, protein-forward meals, sleep—meds when indicated; no 30-day detox myths.

    MARCUS CHEN 14 MIN READ

  3. Metabolic Health

    TSAT and Iron Panel Algorithm for Hemochromatosis Screening

    AASLD uses TSAT ≥45% as the sensitive phenotypic trigger (detects ~98–100% of C282Y homozygotes). Pair with ferritin, then HFE genotyping—do not use TSAT alone as phlebotomy endpoint.

    MARCUS CHEN 4 MIN READ

  4. Metabolic Health

    Ferritin Interpretation with Inflammation: Iron Overload Context

    Ferritin rises as an acute-phase reactant. Pair with TSAT, sex-specific cutoffs, and the 1000 µg/L fibrosis node in HFE disease—never read ferritin alone during illness.

    MARCUS CHEN 4 MIN READ

  5. Metabolic Health

    Insulin Resistance Sex Axes: Visceral Fat, PCOS, Menopause, and Shared Care

    Men more often present visceral-fat IR patterns; women face PCOS and menopause transitions—shared SOC remains diet, weight, exercise, meds.

    SOFIA RAJAN 4 MIN READ

  6. Metabolic Health

    Allergy and Inflammation Sex Axes: Puberty, Pregnancy, Autoimmunity, and Shared Markers

    Allergy and autoimmunity show sex skews across the life course; hs-CRP remains a CV marker—not an allergy diagnostic for either sex.

    SOFIA RAJAN 4 MIN READ

  7. Metabolic Health

    The Health-Optimization Lab Panel Worth Requesting (2026)

    A1C/glucose, lipids/ApoB, iron studies, TSH context, kidney/liver basics, and inflammation—ordered with interpretation plans.

    MARCUS CHEN 14 MIN READ

  8. Metabolic Health

    Seed Oils and Inflammation, Metabolism, and Cancer: Endpoint-by-Endpoint Grades

    Biomarker metas largely spare dietary n-6 as pro-inflammatory; lipids often improve with n-6; T2D observational signals sometimes favor LA; cancer data inconsistent—fry mutagens are a separate issue.

    MARCUS CHEN 4 MIN READ

  9. Metabolic Health

    Sauna, Inflammation, Metabolism, and Brain Outcomes: Beyond Heart Death Endpoints

    Habitual Finnish sauna associates with lower CRP-linked risk pathways, metabolic improvements in some studies, and lower dementia/stroke hazards in KIHD extensions—still observational for hard neurologic claims.

    MARCUS CHEN 4 MIN READ

  10. Metabolic Health

    Labs to Monitor on Carnivore or Animal-Based Experiments

    If you experiment, monitor ApoB/lipids, ferritin, CMP, and context-specific markers. Subjective energy is not a complete safety system.

    MARCUS CHEN 4 MIN READ

  11. Metabolic Health

    Homocysteine Treatment Thresholds in Clinical Context (MTHFR Angle)

    Homocysteine is a lab analyte with context—not a wellness score. Treat deficiencies and indicated elevations; do not chase perfection because of an MTHFR SNP.

    MARCUS CHEN 4 MIN READ

  12. Metabolic Health

    Insulin and Glucose Lab Targets, Explained (2026)

    What fasting insulin, HOMA-IR, A1C, and glucose actually mean—and which targets are guidelines vs internet folklore.

    MARCUS CHEN 14 MIN READ

  13. Metabolic Health

    Hemochromatosis: The Action Steps (2026)

    Confirm iron panels, pursue specialist pathways when indicated, and skip unguided phlebotomy or detox kits.

    MARCUS CHEN 14 MIN READ

  14. Metabolic Health

    Folate Cycle and One-Carbon Metabolism Explained

    How MTHFR, methionine synthase, B12, and SAM connect—without methylation-product theater.

    MARCUS CHEN 7 MIN READ

  15. Metabolic Health

    Prediabetes: The Action Steps That Work (2026)

    Confirm diagnostic bands, then DPP-style lifestyle, strength training, weight management, sleep, and meds when indicated—no detox theater.

    MARCUS CHEN 14 MIN READ

  16. Metabolic Health

    Reading an Iron Panel: Step by Step (2026)

    Read ferritin with TSAT, separate inflammation from overload, know when HFE genetics help, and avoid ferritin-only panic.

    MARCUS CHEN 14 MIN READ

  17. Metabolic Health

    Secondary Iron Overload: Transfusions, Anemias, and Parenteral Iron

    Acquired iron excess from transfusions, ineffective erythropoiesis, or IV iron—not classic HFE hepcidin failure. Phlebotomy often fails when anemia is present.

    MARCUS CHEN 4 MIN READ

  18. Metabolic Health

    Prediabetes Progression and Screening: Catch the Window

    FPG, A1C, and OGTT define the prediabetes band. Progression to T2D is common—and often preventable.

    MARCUS CHEN 4 MIN READ

  19. Metabolic Health

    PBM vs Standard of Care in Diabetes: Honest Positioning

    Lifestyle and proven drugs first. Light is experimental for glucose—stronger for some complications care pathways.

    MARCUS CHEN 4 MIN READ

  20. Metabolic Health

    Non-HFE and Juvenile Hemochromatosis: HJV, HAMP, TFR2, Ferroportin

    About 10–15% of inherited iron overload is non-HFE. Juvenile forms (HJV/HAMP) load fast with early heart and endocrine disease—negative HFE is not “not genetic.”

    MARCUS CHEN 4 MIN READ

Frequently asked

About Metabolic Health

What is the first-line path for insulin resistance?
Evidence still centers weight management when indicated, ≥150 minutes weekly of moderate activity plus resistance training, sleep adequacy, and indicated medications per ADA-class care. Experimental adjuncts such as photobiomodulation do not replace diagnosis or standard therapy.
Should everyone test MTHFR?
Major genetics guidance (ACMG) recommends against routine MTHFR SNP testing for thrombophilia or recurrent pregnancy loss. Common variants are frequent population diversity; folic acid remains the form with proven neural-tube-defect prevention evidence.
Is high ferritin always iron overload?
No. Inflammation, alcohol, and fatty liver commonly raise ferritin without iron overload. Transferrin saturation, clinical context, and sometimes genetics or MRI liver iron complete the workup.