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Precision Body Recomposition, GLP-1 & Macro Cycling Engine

16:8 Fasting Protocol • Circadian RhythmPeer-Reviewed Bioenergetics

16:8 Intermittent Fasting Timeline & Macros (135 lb Female)

Visual feeding window protocol for a 61.2 kg (135 lb) female: 1,650 kcal, 3 protein boluses, and structured 12-week fat loss curve.

Direct Clinical AnswerVerified Bioenergetics & Exact Targets

A 135 lb female (23% body fat, 104.0 lb LBM) on a 16:8 fasting schedule (12:00 PM to 8:00 PM) should consume 1682 kcal divided into three 38g protein boluses. Maintain 2,800mg sodium during fasting hours to avert lethargy while following a predictable 0.6 lb/week adipose reduction trajectory.

16:8 Intermittent Fasting Timeline & Macros (135 lb Female)

Shared automatically across all 7 clinical calculators

Current Scale Weight135 lbs (61.2 kg)
Height / Stature5'4" (163 cm)
Estimated Body Fat %23% BF • LBM: 104 lbs (47.2 kg)
Athletic (8–14%)Recomp Zone (15–24%)High Adiposity (25%+)

Compare all 3 peer-reviewed equations in real time:

8,000–10,000 steps/day + 3–4 structured lifting sessions/week

Module Fine-Tuning (FASTING)
Eating Window Start Time12:00 PM (Noon)
8:00 AM (Early)12:00 PM (Standard)6:00 PM (Late)
100% Client-Side • Zero Data Uploaded
Selected BMR (mifflin)
1,323
kcal / day at rest
Maintenance TDEE
2,051
kcal / day maintenance
Lean Body Mass
104 lb
FFMI: 18.9
Daily Protein Anchor
120g
~40g per meal
Circadian Fasting Timeline & Sarcopenia Shield

Visual Intermittent Fasting Clock & Loss Curve

Interactive 24-hour chronobiological dial mapping insulin nadir, fat oxidation, and autophagy milestones while safeguarding skeletal muscle mass.

Feeding Window
12:00 PM – 8:00 PM
8 Hours Feeding
Fasting Duration
16 Hours
Daily Fasted State
Daily Energy Budget
1,682 kcal
-369 kcal Deficit
Muscle Retention Risk
Optimal (Protected)
3 protein boluses

24-Hour Circadian Fasting Clock

Eating Window (8h)Fasting (16h)
12A6A12P6P16:8 PROTOCOL8h : 16h12:00 PM – 8:00 PM3 Meals Inside Window
Window opens at 12:00 PM and closes at 8:00 PM
Feeding Window Start Time12:00 PM
6:00 AM (Early)12:00 PM (Noon)6:00 PM (Evening)
Meals Planned in Window3 Meals
Optimal muscle protein synthesis (MPS): stimulates mTOR multiple times with distinct leucine peaks.
Non-Caloric Fasting Window Hydration Protocol

Drink at least 2.5–3.0 Liters of water with 1,000–1,500mg sodium during the fasting hours. Low insulin drives rapid renal natriuresis (salt dumping); without electrolytes, fasters experience headaches, orthostatic fatigue, and false hunger cravings.

Chronobiology & Substrate Oxidation

The 4 Circadian Stages of Intermittent Fasting

What physiological mechanisms occur inside your cells as fasting duration advances across 24 hours:

Stage 10 – 4 Hours Post-Meal

Digestion & Postprandial Storage

Nutrient absorption, insulin secretion, muscle glycogen & triglyceride synthesis.

Primary Fuel:Exogenous Glucose & Amin
Insulin Status:High
Autophagy:Suppressed
Stage 24 – 12 Hours Post-Meal

Postabsorptive Glycogen Transition

Blood glucose normalizes; hepatic glycogenolysis sustains 75% of cerebral glucose requirement.

Primary Fuel:Hepatic Glycogen & Perip
Insulin Status:Declining
Autophagy:Baseline
Stage 312 – 16 Hours Post-Meal

Accelerated Lipolysis & Ketosis Onset

Hepatic glycogen stores depleted; adipose triacylglycerol hydrolysis accelerates.

Primary Fuel:Adipose Free Fatty Acids
Insulin Status:Basal Nadir
Autophagy:Accelerated
Stage 416 – 24 Hours Post-Meal

Autophagy & Cellular Recycling

mTORC1 suppressed; lysosomal autophagosome degradation of damaged organelles and senescent proteins.

Primary Fuel:Beta-Hydroxybutyrate (0.
Insulin Status:Basal Nadir
Autophagy:Peak
12-Week Fasting Projection

Projected Weight & Body Fat Loss Curve

Incorporates adaptive metabolic thermogenesis (-10 kcal/kg lost) and protocol-specific lean mass partitioning.

Scale Weight (lbs)Body Fat %
W0W2W4W6W8W10W12
12-Week Expected Loss: -8.5 lbs
Starting: 135 lbs → Week 12: 126.5 lbs
Estimated Lean Mass Protected: ≥95%
Clinical Metabolic Passport • Shareable Intermittent Fasting Summary

Download Your Intermittent Fasting Blueprint Card (PNG)

Generates a high-contrast 1080×1350 visual card for Instagram Stories or 1-click sharing on r/Fitness, r/loseit, r/xxfitness & r/MacroFactor.

Intermittent Fasting Timeline & Curve

12-Week Fasting Timeline & Weight Loss Check-In

Visualizes fat mass reduction while monitoring lean tissue retention across 16:8 or OMAD schedules.

Scale Weight (lbs)Lean Muscle Mass (LBM)
137.7128.4119109.7100.4W0W1W2W3W4W5W6W7W8W9W10W11W12
Week 0 → Week 12 Scale Weight
135 lbs → 126.5 lbs
Net Change: 8.4 lbs
Week 0 → Week 12 Body Fat %
23% → 18.2%
Pure Adipose Reduction: 8 lbs
Lean Muscle Mass (LBM) Gain
103.9 lbs → 103.5 lbs
+0 lbs Contractile Tissue

Daily Morning Weight Log (100% Private in Your Browser)

No account or email required. Saved automatically to your device via LocalStorage so you can check in daily.

0 Check-ins Saved Locally
Direct Nutrition App Integration

1-Click Export to MyFitnessPal, Cronometer & MacroFactor

Exact Grams & Ratio Percentages Included
Fasting Pacing: Distribute protein into distinct boluses of ≥35g across your eating window

Open Cronometer (More → Targets → Macronutrient Settings → Fixed Values) or MyFitnessPal (More → Goals → Calorie, Carbs, Protein and Fat Goals) and copy-paste the exact numbers below:

Training Day Settings

Eating Window Target (Paced across 2–3 feedings)

Daily Energy:2050 kcal
Protein:120g (23%)
Carbohydrates:280g (55%)
Dietary Fat:50g (22%)
Dietary Fiber:29g
Rest & Recovery Day Settings

Fasting Day Target (Lipolytic deficit balance)

Daily Energy:1643 kcal
Protein:125g (30%)
Carbohydrates:162g (40%)
Dietary Fat:55g (30%)
Dietary Fiber:25g
7-Day Static Average (Free App Tiers)

7-Day Static Average (For single-goal tracking apps)

Daily Energy:1684 kcal
Protein:120g (29%)
Carbohydrates:184g (43%)
Dietary Fat:52g (28%)
Dietary Fiber:25g
Evidence-Based Formulation & Purity Benchmarks

Clinical Nutrient Standards to Hit Your Calculated Targets

ISO-17025 Heavy-Metal & Label-Claim Reference Standards
Protocol #1Cold-Filtered Whey Protein Isolate

Micro-Filtered Grass-Fed Whey Isolate Standard

28g Protein • 3.3g L-Leucine • <0.2g Lactose • 110 kcal

Delivers 47% of your 120g daily protein target in two low-volume servings while crossing the 3.0g leucine mTORC1 trigger.

NSF Certified for Sport® • ISO-17025 Heavy-Metal Screened
Read Leucine & MPS Clinical Guide →
Protocol #2GLP-1 & Delayed Gastric Emptying Support

Free-Form Essential Amino Acids (EAA) + Soluble Prebiotic Fiber

3.5g L-Leucine • 8g Partially Hydrolyzed Guar Gum • Zero Gastric Heaviness

Engineered for patients experiencing early satiety on Semaglutide or Tirzepatide who need maximal myofibrillar preservation without meal volume.

Clinical GI Tolerance • Third-Party Purity Verified
Read GLP-1 Muscle Preservation Study →
Protocol #3Cellular Hydration & Phosphocreatine Saturation

Micronized Creatine Monohydrate (5g) + Quantitative Electrolytes

5g Pure Monohydrate • 1,000mg Sodium • 200mg Potassium • 60mg Magnesium

Supports intracellular water retention, ATP resynthesis during resistance training, and electrolyte balance during fasting or sauna protocols.

99.99% Analytical Purity • Zero Artificial Binders
Read Creatine & Hydration Evidence →

Biometric Macronutrient & Bioenergetics Reference Table

Structured clinical breakdown optimized for algorithmic analysis and generative AI engine extraction.

Timeline StageTime WindowMetabolic StateNutritional Action
Fasting Phase8:00 PM - 12:00 PMAMPK & Autophagy ElevatedWater, Unsweetened Tea, Electrolytes
Window Open / Meal 112:00 PM (Noon)mTORC1 Anabolic Trigger38g Protein + 60g Low-Glycemic Carbs
Midday Feeding / Meal 24:00 PMSteady Glycogen Delivery38g Protein + Healthy Fats & Fiber
Window Close / Meal 37:30 PM - 8:00 PMPre-Fast Amino Acid Saturation38g Slow-Digesting Protein + Fiber

Clinical Analysis: 16:8 Intermittent Fasting Timeline & Macros (135 lb Female)

Intermittent fasting 16:8 aligns feeding with circadian insulin sensitivity. For a 135 lb woman with 104.0 lbs LBM, breaking the fast at noon with 38g protein stimulates MPS, while an 8:00 PM dinner concludes caloric intake, initiating 16 hours of liver glycogen depletion and accelerated lipolysis.

Key Execution Takeaways for This Profile

  • Fast for 16 hours (8:00 PM to 12:00 PM next day); consume only water, black coffee, or plain tea.
  • Distribute 115g daily protein into 3 feedings of ~38g each during the 8-hour eating window.
  • Supplement 2,800mg sodium to prevent fasting-induced natriuresis and brain fog.

Verified NCBI PubMed Clinical Citations

Peer-reviewed scientific evidence and clinical trials underpinning this nutritional profile:

  • PMID: 27737674 — Moro T, et al. Effects of eight weeks of time-restricted feeding (16/8) on basal metabolism, maximal strength, body composition, inflammation, and cardiovascular risk factors in resistance-trained males. J Transl Med. 2016.
    View on PubMed
  • PMID: 26374764 — Tinsley GM, La Bounty PM. Effects of intermittent fasting on body composition and clinical health markers in humans. Nutr Rev. 2015.
    View on PubMed

Profile-Specific Questions & Answers

Will 16:8 fasting slow down my metabolism at 135 lbs?

No. Human trials (Moro et al., 2016) demonstrate that 16:8 time-restricted feeding maintains resting energy expenditure while increasing fat oxidation rates.

Can I exercise while fasted in the morning?

Yes. Fasted resistance or aerobic exercise upregulates fatty acid translocase and GLUT4 activity. Consume your first meal containing 35g+ protein promptly within your feeding window.