Metabolic Health Guide | Runar Health
Metabolic Optimization Protocol

Metabolic
Health Guide

Restore energy, stabilize blood sugar, and build long-term resilience through science-backed nutrition, training, and biometric tracking.

<100 Fasting Glucose mg/dL
<5.7% Target HbA1c
14 Days Reset Protocol
<140 Post-Meal Peak mg/dL
Metabolic Cheat Sheet
Quick Ref
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Glycation & AGEs

  • β†’Glycation = glucose bonding to proteins/fats, damaging cells
  • β†’HbA1c measures average glycation over 3 months
  • β†’Cooking at high heat creates AGEs β€” prefer low-slow methods
  • β†’Quercetin & Carnosine inhibit glycation naturally
HbA1c AGEs Carnosine
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Ketosis & Fat Adaptation

  • β†’Ketosis: liver produces ketones when carbs <50g/day
  • β†’BHB (beta-hydroxybutyrate) is a clean, anti-inflammatory fuel
  • β†’Fat adaptation takes 3–6 weeks of consistent low-carb
  • β†’Target blood ketones: 0.5–3.0 mmol/L for nutritional ketosis
BHB Ketones Fat Oxidation
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Insulin Sensitivity

  • β†’Cells respond to insulin to absorb glucose from blood
  • β†’Resistance = cells ignore insulin β†’ chronic high blood sugar
  • β†’Exercise is the #1 non-pharmaceutical insulin sensitizer
  • β†’Fasting 12–16 hrs restores receptor sensitivity overnight
GLUT4 Fasting Resistance
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Mitochondrial Health

  • β†’Mitochondria are ATP factories β€” metabolic rate depends on them
  • β†’Zone 2 cardio is the most potent mitochondrial biogenesis trigger
  • β†’CoQ10 & NAD+ are critical cofactors for ATP synthesis
  • β†’Cold exposure & sauna upregulate mitochondrial efficiency
ATP NAD+ Zone 2
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Inflammation & mTOR

  • β†’Chronic low-grade inflammation drives metabolic dysfunction
  • β†’mTOR: growth pathway activated by protein/insulin/exercise
  • β†’Fasting inhibits mTOR β†’ triggers autophagy (cellular cleanup)
  • β†’CRP <1.0 mg/L is the optimal inflammatory marker target
mTOR Autophagy CRP
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Metabolic Flexibility

  • β†’Ability to switch between glucose and fat as primary fuel
  • β†’Poor flexibility = reliance on frequent meals to avoid crashes
  • β†’Improve with: IF + Zone 2 + low-carb cycling
  • β†’RQ (Respiratory Quotient) is the gold-standard flexibility test
RQ Score Dual Fuel
Clinical Markers
Optimal Targets
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Fasting Glucose
< 100 mg/dL
Optimal: 70–90
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HbA1c
< 5.7%
Optimal: < 5.3%
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Triglycerides
< 150 mg/dL
Optimal: < 100
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Fasting Insulin
< 10 Β΅IU/mL
Optimal: 2–6
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hsCRP
< 1.0 mg/L
Inflammation marker
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HOMA-IR
< 1.5
Insulin resistance
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HDL Cholesterol
> 60 mg/dL
Cardioprotective
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Vitamin D
40–80 ng/mL
Metabolic regulator
Daily Biometric Targets
Score Board
Metabolic Performance Score
Insulin Sensitivity88 / 100
Mitochondrial Efficiency74 / 100
Metabolic Flexibility65 / 100
Inflammation Control91 / 100

* Scores are illustrative targets. Track your own via CGM, blood labs, and VOβ‚‚max testing.

Healthy vs. Unhealthy Lifestyle Factors
Side by Side
βœ… Metabolically Supportive
Post-Meal Walking
10–20 min walk after eating blunts glucose spikes by up to 30%
Proven
Zone 2 Cardio
30–60 min conversational pace boosts fat oxidation & mitochondria
Essential
7–9 Hours of Sleep
Poor sleep raises cortisol and fasting glucose within one night
Critical
Intermittent Fasting
12–16 hr window restores insulin sensitivity and lowers fasting glucose
Proven
Strength Training 2–4Γ—/wk
Increases GLUT4 transporters, removing glucose directly from blood
Essential
Stress Management
Meditation & breathwork lower cortisol, which directly disrupts insulin
Impactful
Protein-First Meal Sequencing
Eating protein & fiber before carbs flattens the glucose curve
Proven
❌ Metabolically Disruptive
Sedentary Behavior
Sitting 8+ hrs/day reduces insulin sensitivity independently of exercise
High Risk
Chronic Poor Sleep
Under 6 hrs consistently doubles insulin resistance risk within weeks
Critical
High Fructose Consumption
Liver processes fructose directly β†’ drives visceral fat & fatty liver
Avoid
Chronic Psychological Stress
Cortisol chronically elevates blood glucose and promotes fat storage
High Risk
Snacking Constantly
Keeps insulin chronically elevated β€” prevents fat oxidation all day
Limit
Alcohol (Regular)
Blocks fat oxidation for hours and disrupts sleep architecture
Minimize
Ultra-Processed Carbohydrates
Hyper-palatable foods designed to override satiety signals & spike glucose
Avoid
Metabolic Training Protocols
The Medicine
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Strength Training
2–4Γ— per week
Increases GLUT4 density in muscle. Each session creates insulin-independent glucose uptake for 24–48 hrs.
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Zone 2 Cardio
3–5Γ— per week Β· 30–60 min
Conversational pace. The most potent trigger for mitochondrial biogenesis and fat oxidation capacity.
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HIIT / Sprint
1–2Γ— per week
Short bursts rapidly deplete muscle glycogen, creating a glucose “sink” that improves sensitivity for hours.
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Post-Meal Walk
Daily Β· 10–20 min
The single highest ROI habit. Blunts post-meal glucose spikes by 20–30% without gym equipment.
CGM & Data Tracking
Biofeedback
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<140
Post-Meal Peak Target
Non-diabetic optimal range. Peaks above 140 mg/dL cause accelerated glycation of proteins and vessels.
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<30 min
Time Above 140 mg/dL
Minimize “time in hyperglycemia” daily. CGMs make this trackable for the first time without labs.
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Flat Curve
Glycemic Variability Goal
Lower glycemic variability (GV) predicts longevity and cognitive health better than average glucose alone.
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Fiber First
Meal Order Intervention
Eating vegetables β†’ protein β†’ carbs reduces glucose peak by up to 37% versus carbs first. Confirmed by CGM data.
14-Day Metabolic Reset
Action Plan
Days 01–03 Β· Foundation

The Clean Slate

Eliminate liquid sugars (juice, soda, sweetened coffee). Build every meal around protein + vegetables. Begin a daily 20-minute post-lunch walk.

Remove liquid sugar Protein-first meals 20 min post-meal walk
Days 04–07 Β· Add Structure

Fasting & Movement

Introduce a 14:10 eating window (shift to 16:8 by Day 7). Add 2 resistance training sessions. Begin tracking sleep duration and aiming for 7–9 hrs.

14:10 fasting window 2Γ— strength sessions Track sleep quality
Days 08–10 Β· Deepen

Zone 2 & Carb Timing

Add 2 Zone 2 cardio sessions (30–45 min). Shift carbohydrate consumption to immediately post-workout only. Consider using a CGM for real-time feedback.

2Γ— Zone 2 sessions Carbs post-workout only Electrolyte balance
Days 11–14 Β· Assess & Anchor

Measure, Reflect, Lock In

Reassess waist circumference, energy levels, and sleep quality. Get fasting glucose + HbA1c if possible. Select 3 habits to continue permanently as your “metabolic minimum.”

Waist measurement Fasting glucose lab Choose 3 anchor habits
Common Questions
FAQ
How long until I see measurable results?
Subjective improvements (energy, sleep, fewer crashes) typically emerge within 3–7 days of removing refined sugars and adding post-meal walks. Objective blood markers like HbA1c require 8–12 weeks to reflect meaningful change, as they represent a 3-month average. CGM data, however, shows real-time improvement within the first week.
Is a Continuous Glucose Monitor (CGM) necessary?
Not essential, but extraordinarily useful. A 2–4 week CGM trial is the fastest way to identify personal food sensitivities (often surprising β€” rice vs pasta, for instance). For most people, consistent movement, whole food eating, and annual labs are sufficient to manage metabolic health without ongoing CGM use.
Can supplements fix insulin resistance?
Supplements are adjuncts, not solutions. Magnesium (300–400mg), Berberine (500mg 3Γ—/day), and Omega-3s all show evidence for improving insulin sensitivity at the margins. But building muscle mass through resistance training is 5–10Γ— more powerful than any supplement. Diet and movement are the foundation β€” supplements fill documented gaps.
What if I can’t do 16:8 intermittent fasting every day?
A consistent 12-hour overnight fast (e.g., 8pm–8am) delivers the majority of IF’s benefits and is sustainable for most people. Prioritize it on non-social days and use a 12-hour window as your floor. The consistency of the habit matters more than the window length.
How does sleep affect blood sugar?
Dramatically. Even a single night of under 6 hours of sleep raises next-morning fasting glucose and cortisol, impairs insulin sensitivity, and increases appetite (particularly for high-carb foods) the following day. Chronic sleep restriction is now classified as an independent risk factor for metabolic syndrome, regardless of diet.
Daily Metabolic Minimum
Final Checklist
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Protein + veg + fat at every meal
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Walk 15–20 min after largest meal
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Strength train 2–4Γ— per week
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Maintain a 12–16 hr eating window
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7–9 hours of sleep, non-negotiable
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Eliminate all liquid sugars daily
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Zone 2 cardio 2–3Γ— per week
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Track waist + annual labs each year