Evidence-dense health optimization

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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

    Iron Overload Diet Modifiers: Alcohol, Vitamin C, Shellfish, Supplements

    Diet is a modifier, not a cure. Phlebotomy removes ~250 mg iron per unit weekly; diet shifts absorption only a few milligrams per day.

    SOFIA RAJAN 4 MIN READ

  2. Metabolic Health

    MRI Liver Iron, Cardiac T2*, and When Biopsy Still Matters

    MRI quantifies liver iron concentration and cardiac T2* noninvasively. In HFE HH, biopsy is mainly for fibrosis staging when ferritin exceeds 1000 µg/L or enzymes rise—not routine genetic diagnosis.

    MARCUS CHEN 4 MIN READ

  3. Metabolic Health

    Iron Chelation and Special Cases: When Phlebotomy Is Not an Option

    Deferoxamine, deferasirox, and specialty pathways for transfusional overload—chelation when blood removal is impossible, not a wellness detox.

    MARCUS CHEN 4 MIN READ

  4. Metabolic Health

    Insulin Resistance Pathophysiology: Muscle, Liver, Fat, and Signaling

    IR is impaired insulin action in muscle, liver, and adipose—ectopic lipid, inflammation, and β-cell compensation explain the arc to T2D.

    MARCUS CHEN 4 MIN READ

  5. Metabolic Health

    HFE Genetic Testing Workflow: Who to Test and How to Interpret

    HFE genotyping follows elevated iron studies or first-degree relatives of known HH—not unselected population screening. Homozygotes, compound hets, and simple hets map to different next steps.

    ELENA VOSS 4 MIN READ

  6. Metabolic Health

    Hemochromatosis Screening: Family Cascade vs Population Genetics

    Screen first-degree relatives with iron studies plus HFE testing. Societies recommend against universal population genotype screening because penetrance is incomplete.

    ELENA VOSS 4 MIN READ

  7. Metabolic Health

    Diet Patterns, Weight, and Insulin Resistance: What Moves the Needle

    Energy deficit and dietary patterns that cut ectopic fat beat miracle macros. Mediterranean-style and structured programs have outcome data.

    MARCUS CHEN 4 MIN READ

  8. Metabolic Health

    Diabetes Pharma Landscape Brief: Metformin, GLP-1, SGLT2

    Standard-of-care drugs have hard outcome data. Know the classes before ranking experimental light.

    MARCUS CHEN 4 MIN READ

  9. Metabolic Health

    IgE Type I Hypersensitivity Explained

    Sensitization, FcεRI, mast-cell degranulation—minutes that define classic allergy.

    SOFIA RAJAN 4 MIN READ

  10. Metabolic Health

    Eczema, Skin Barrier, and the Atopic March

    Barrier failure can sensitize through skin; oral exposure may tolerize. March is not destiny.

    SOFIA RAJAN 4 MIN READ

  11. Metabolic Health

    Allergic Rhinitis and Asthma: United Airways

    One airway, shared T2 inflammation—ARIA asks about asthma in every rhinitis patient.

    SOFIA RAJAN 4 MIN READ

  12. Metabolic Health

    Habits That Improve Insulin Sensitivity (2026)

    First-line insulin sensitivity levers: walking after meals, resistance training, weight loss when indicated, sleep, and food pattern—drugs and gadgets ranked honestly.

    MARCUS CHEN 14 MIN READ

  13. Metabolic Health

    Sleep, Circadian Rhythm, and Insulin Resistance

    Short sleep and night light are metabolic exposures—not soft lifestyle footnotes.

    MARCUS CHEN 4 MIN READ

  14. Metabolic Health

    High Ferritin Without Iron Overload: Inflammation, NAFLD, and Other Mimics

    Ferritin is an acute-phase reactant. High values ≠ automatic hemochromatosis.

    MARCUS CHEN 4 MIN READ

  15. Metabolic Health

    hs-CRP and IL-6: Inflammation Markers Without Allergy Confusion

    hs-CRP stratifies residual CV inflammatory risk. It does not diagnose food allergy or MCAS.

    JULIAN HART 4 MIN READ

  16. Metabolic Health

    Hemochromatosis Phlebotomy Protocol: Induction and Maintenance Targets

    Weekly units until ferritin 50–100 µg/L, then personalized maintenance—first-line for HFE overload.

    MARCUS CHEN 4 MIN READ

  17. Metabolic Health

    Exercise for Insulin Resistance: Aerobic, Resistance, and Concurrent Training

    Muscle is a glucose sink. Training beats gadget stacks for IR when volume is real.

    MARCUS CHEN 4 MIN READ

  18. Metabolic Health

    Diabetes Diagnostic Criteria: FPG, OGTT, and HbA1c Explained

    ADA cut points define dysglycemia categories—not HOMA-IR and not one restaurant spike.

    MARCUS CHEN 4 MIN READ

  19. Metabolic Health

    The Metabolic Labs Worth Requesting (2026)

    Decision-grade lab roundup: glycemic criteria, HOMA-IR context, ApoB, iron studies, hs-CRP, and foundational CMP/TSH—without wellness panel maximalism.

    MARCUS CHEN 14 MIN READ

  20. Metabolic Health

    Omega-6 to Omega-3 Ratio and Inflammation: What Human Evidence Shows

    The ratio is real chemistry. Treating it as a CRP thermometer is not.

    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.