Every entry.
All 111 Vital Codex entries, newest first. Tier I is free and open to everyone; Tier II adds the full mechanisms, dosing detail, and citations.
The Menopause Protocol: A Full-Body Remodel, Not a Broken Switch
Menopause is a systemic remodel of energy, bone, brain, and vascular biology, not simply the end of ovulation — and the interventions that help most are timed, mechanistic, and unglamorous.
Iodine and the Thyroid Terrain
Iodine has one of the narrowest useful ranges of any nutrient. Too little and the thyroid cannot build hormone; too much and it shuts down.
Iodine Decoded: How It Builds Thyroid Hormone, Where Else It Works, and Why the High-Dose Debate Still Matters
Iodine is the only nutrient built physically into a hormone molecule. This guide maps requirement, deficiency disease, food sources, supplement forms, extrathyroidal roles, cofactors, and the high-dose debate — with the risks stated plainly.
Sun Exposure: Weighing Skin Cancer Risk Against Vitamin D and Beyond
The evidence supports avoiding sunburn, not avoiding sunlight — and the distinction has consequences for vitamin D status, nitric oxide, circadian timing, and all-cause mortality.
The Thyroid as Metabolic Thermostat: Reading the Panel Properly
Most thyroid complaints are evaluated with a single number. The tissue-level question — how much active hormone actually reaches the cell — requires more of the panel than TSH alone.
The Cortisol–Mitochondria Feedback Loop
How chronic glucocorticoid exposure alters mitochondrial morphology and respiratory capacity in the prefrontal cortex.