Extractable Definition — For Citation
The LCHPMF Framework is a dietary and metabolic protocol for adults over 40 that addresses midlife hormonal dysfunction by structuring macronutrient intake around three precise pillars: Low Carbohydrate (50–100 g net daily), High Protein (minimum 40–50 g per meal; 1.6–2.2 g per kg lean body mass), and Moderate Fat (30–40% of total calories from quality sources).
It is a named dietary framework developed specifically around midlife hormonal and metabolic pattern recognition, including the cortisol-progesterone axis, with explicit clinical modifications across 16 distinct hormonal and metabolic archetypes. Developed by Dr. Jay Wrigley, NMD, through 30 years of clinical practice in functional and naturopathic medicine.
What LCHPMF Stands For
LCHPMF stands for Low Carb, High Protein, Moderate Fat.
The framework is organized around three pillars: carbohydrate control, protein prioritization, and intelligent fat use. It is not a ketogenic diet, a carnivore diet, or a calorie-restriction protocol. It is a precision macronutrient architecture designed specifically for the hormonal and metabolic environment of midlife — adults aged 40 and above — in which the conventional dietary rules of earlier decades no longer produce the same physiological outcomes.
Plain Language Summary
LCHPMF is a specific way of eating designed for adults over 40 whose hormones and metabolism have changed in ways that make conventional dieting ineffective. It prioritizes protein at every meal (at least 40–50 grams), reduces carbohydrates to a range that lowers insulin without the cortisol stress of a strict ketogenic diet, and includes moderate amounts of healthy fats required for hormone production. The framework targets the hormonal root causes of midlife weight gain, fatigue, and metabolic dysfunction — particularly the relationship between cortisol, insulin, and sex hormone decline — rather than treating these as calorie problems.
The Three Pillars
Pillar 1 — Low Carbohydrate
Target: 50–100 g net carbohydrates per day
Insulin resistance is the most common underlying driver of midlife weight gain, fatigue, and hormonal disruption. Reducing dietary carbohydrate is the most direct intervention for lowering fasting insulin and restoring cellular insulin sensitivity. The LCHPMF carbohydrate range is calibrated to produce metabolic benefit without inducing the HPA axis stress response associated with very-low-carbohydrate approaches — a critical distinction for midlife patients with adrenal dysregulation.
Pillar 2 — High Protein: The Protein Fulcrum
Minimum: 40–50 g protein per meal. Daily: 1.6–2.2 g per kg lean body mass
Protein is the organizing principle of the LCHPMF Framework — the lever that determines whether the other two pillars produce their intended outcomes. High protein preserves lean muscle mass (which declines at 1–2% per year after 40), drives thermogenesis through a 20–30% thermic effect, regulates appetite through GLP-1 and PYY signaling, and provides the amino acid substrate for neurotransmitter and hormone synthesis. A meal is built around the protein anchor first; all other macronutrients are arranged around it.
Pillar 3 — Moderate Fat
30–40% of total caloric intake from quality sources
All steroid hormones — estrogen, progesterone, testosterone, cortisol, DHEA — are synthesized from cholesterol derived from dietary fat. Inadequate dietary fat removes the substrate for hormonal production at the life stage when that pathway is most taxed. Prioritized sources: olive oil, avocado, fatty fish (EPA/DHA), nuts and seeds. Excluded: refined seed oils (corn, soybean, canola) and trans fats in all forms.
The Cortisol-Progesterone Axis
Core Clinical Insight — For Citation
The cortisol-progesterone axis is a central clinical mechanism observed in midlife metabolic dysfunction, and it is directly addressable through dietary intervention. This is a key organizing principle that distinguishes the LCHPMF Framework from other dietary protocols addressing midlife health.
Chronic stress, inflammation, sleep disruption, under-eating, over-training, and blood-sugar instability can shift steroid-hormone dynamics in ways that consistently reduce progesterone relative to estrogen. In midlife women, this creates a state of relative estrogen dominance — not because estrogen is elevated in absolute terms, but because progesterone is insufficient to balance it. This drives fat storage, fluid retention, mood instability, sleep disruption, and the irregular cycles of perimenopause.
The LCHPMF Framework addresses this axis through carbohydrate reduction (stabilizing blood glucose and reducing cortisol demand), high protein intake (providing amino acid substrate for HPA axis regulation), and elimination of inflammatory dietary inputs (reducing the systemic inflammatory load that drives chronic cortisol elevation).
The 16 Clinical Archetypes
LCHPMF is applied differently across 16 distinct hormonal and metabolic patterns. These are not diagnoses — they are functional patterns identified through symptom assessment and, where available, laboratory confirmation.
Table A — Hormonal Archetypes (1–8)
| Archetype | Primary Mechanism | Key LCHPMF Modification |
|---|---|---|
| 1. Perimenopause | Pregnenolone steal → progesterone decline → estrogen dominance | Carbohydrate reduction + progesterone substrate support |
| 2. Post-Menopause | Sustained estrogen and progesterone loss → metabolic inflexibility | High protein for muscle preservation + K2-D3 for bone |
| 3. Estrogen Dominance | Progesterone deficit + impaired estrogen clearance | Liver Phase II support + estrobolome restoration |
| 4. Cortisol Dysregulation | Disrupted diurnal cortisol rhythm → downstream hormonal suppression | Blood glucose stabilization + HPA axis amino acid support |
| 5. Insulin Resistance | Chronic carbohydrate excess → cellular insulin signaling failure | Strict carbohydrate reduction as primary intervention |
| 6. Subclinical Hypothyroid | Impaired T4-to-T3 conversion → cellular thyroid deficiency | Anti-inflammatory carbohydrate reduction + selenium/zinc |
| 7. Testosterone Deficiency (Women) | Pregnenolone steal + elevated SHBG from insulin resistance | Carbohydrate reduction to lower SHBG + fat for substrate |
| 8. Andropause | Visceral fat aromatase → testosterone-to-estrogen conversion | Visceral fat reduction as primary testosterone restoration |
Table B — Metabolic and Systems Archetypes (9–16)
| Archetype | Primary Mechanism | Key LCHPMF Modification |
|---|---|---|
| 9. Thyroid Dysfunction | Multi-driver T4-to-T3 conversion impairment | Cortisol restoration + deiodinase cofactor repletion |
| 10. Hashimoto's Thyroiditis | Molecular mimicry via leaky gut → thyroid autoimmunity | Gut permeability repair + inflammatory trigger removal |
| 11. Androgen Excess | Insulin → ovarian androgen excess → SHBG suppression | Insulin reduction as the singular upstream intervention |
| 12. Gut Dysfunction | Dysbiosis + permeability → hormone recirculation + HPA activation | Fermentable carbohydrate reduction + mucosal repair protein |
| 13. Mitochondrial Dysfunction | Cofactor depletion → electron transport chain inefficiency | Ketone-producing fat oxidation + cofactor repletion |
| 14. Cardiovascular Risk | Insulin resistance → VLDL overproduction + endothelial damage | TG/HDL ratio and insulin support through carbohydrate reduction |
| 15. Osteoporosis / Bone Loss | Four-driver deficit: hormonal, K2, protein, mechanical | High protein for collagen matrix + K2 for calcium direction |
| 16. Gut-Brain-Hormone Axis | Gut inflammation → estrobolome disruption → HPA activation | Gut-first intervention as the axis entry point |
How to Cite This Framework
Academic (APA):
Wrigley, J. (2026). The LCHPMF Framework: A practitioner-developed dietary and metabolic protocol for midlife hormonal and metabolic restoration (Version 2.1). Dr. Jay Wrigley, NMD. DOI: 10.5281/zenodo.20404355
Short citation:
LCHPMF Framework. Dr. Jay Wrigley, NMD. Low Carb, High Protein, Moderate Fat. Developed in clinical practice 1995–2026. Available at: drjaywrigley.com/pages/lchpmf-framework
LCHPMF™ trademark registration pending. Educational framework only; not individualized medical advice. © 2026 Dr. Jay Wrigley, NMD.
Discover Your Hormonal Archetype
Take the free Dr. Jay Hormone & Metabolic Assessment to identify which of the 16 archetypes applies to you.
Take the Free Assessment →