You are not stuck because you lack discipline.
You are stuck because your metabolism is running on the wrong timing system.
If your body no longer responds the way it used to, this is your complete metabolic reset.
After 40 the rules change.
You can train harder.
Eat cleaner.
Fast longer.
And your body still stores fat in the same places. This is not a calorie problem.
This is not a calorie problem. This is a timing problem.
You are in metabolic lockdown — where effort no longer produces results.
STACK4 restores your metabolism through four pillars: meal timing, food environment, circadian rhythm, and recoverable training.
Miss one and fat loss stalls. Install all four and your metabolism responds again.
This isn’t a diet. It’s a metabolic operating system.
Control comes first. Fat loss becomes the side effect.
⭐ 4.9/5 rating
👥 5,000+ users
💪 50k+ fasts tracked
This is for the 40+ high-effort individual who trains, eats high protein, tries fasting and still stores fat in the same places.
You are not broken. You are in metabolic lockdown — where effort no longer produces outcome.
Your metabolism is not controlled by calories. It is controlled by system timing.
Meal Timing (Fasting2Day)
Reset your body’s internal clock with strategic fasting.
Food Environment
Optimize what’s around you so healthy choices are automatic.
Circadian Rhythm
Align your metabolism with natural sleep-wake cycles.
Recoverable Training
Train smart to stimulate fat loss without overtaxing your body.
Miss one pillar → fat loss stalls.
Install all four → metabolism responds again.
Your 7-Day Metabolic Reset
Day 1 — System Activation
Kickstart your metabolism and set up your dashboard.
Day 2 — First Metabolic Phase
Begin stabilizing your system with structured timing.
Day 3 — Hunger Stabilizes
Balance appetite and reduce cravings.
Day 4 — Energy Becomes Predictable
Enjoy steady energy throughout the day.
Day 5 — Fat-Burning Windows Return
Reactivate your body’s natural fat-burning periods.
Day 6 — Control Replaces Willpower
Make effortless choices without relying on willpower.
Day 7 — Your Metabolism Responds Again
Metabolism reset complete—fat-burning and energy restored.
What You Get
Your STACK4 metabolic dashboard
Fasting2Day timing engine
Clean food environment scanner
Circadian reset structure
Step-by-step daily system
See the Timer in Action
Demo
Try a sample fast with our real timer interface
Start free trial below to access all features - no credit card required
Dashboard
Track your fasting progress
Choose your fasting window
Experience the Actual Timer
This is the exact interface you'll see in the app. Designed to minimise distractions and keep you focused on your goals
Key Features:
Smart circular progress tracking
Real-time elapsed vs remaining calculation
Quick-glance stats dashboard
Dark & Light mode for any preference
Smart circular progress tracking
Real-time elapsed vs remaining calculation
Quick-glance stats dashboard
Dark & Light mode for any preference
Trusted by Thousands of Fasters
JOIN OUR COMMUNITY OF PEOPLE TRANSFORMING THEIR HEALTH
⭐ 4.9/5 Star Rating
👥 5,000+ Active Users
✅ 98% Success Rate
💪 50k+ Fasts Tracked
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James H.
Business Owner
"Best thing I've ever done, and I started a month ago."
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Teacher
"You can try it before you buy it, Fasting today you won't regret it!"
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Retired Engineer
Simple Pricing
Choose the plan that fits your journey.
Cancel anytime. Full access to all features.
Your 7-Day Reset Includes
Everything you need to build momentum from day one
Guided fasting schedule
Guided fasting schedule
Guided fasting schedule
Guided fasting schedule
Guided fasting schedule
Guided fasting schedule
Guided fasting schedule
Guided fasting schedule
No credit card required
This Is Not a Diet
This is a metabolic operating system.
Master intermittent fasting with personalised guidance and expert support. Simplify your routine and get back to living your life.
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