THE ARCHITECTURE

26 logic nodes argue the math.
You get one plan.

KEXBI doesn't replace the practitioner. It digitises their expertise. They run in parallel — cloud and on-device — resolving your data into a single answer.

Inside the system

Your plan is built from 26 simultaneous calculations. Not one. Not sequential. In parallel.

VO2 Model

Calculates true baseline from lean body mass.

Sleep Recovery

Adjusts next-day fuelling from sleep quality.

Fluid Protocol

Calculates precise replacement from strain and thermal load.

Carb Timing

Orchestrates carbohydrate delivery around your training window.

Circadian Phase

Aligns meals to when your metabolism naturally opens and closes.

Hypertrophy Engine

Distributes protein pulses to maximise overnight muscle repair.

Trend Engine

Tracks 7-day trend against your goal line to catch drift.

KIRA

Your voice interface. Tell her what you ate, she does the rest.

You don't see these. You see the result.

20 logic nodes run in the cloud. 5 run directly on your device. 1 — KIRA — runs in both. The engine doesn't wait for a server when it doesn't have to.

Behind them: The Gut Specialist, The Blood Sugar Analyst, The Vegan Pragmatist, The Keto Envoy, The Fasting Guardian, The Hormone Observer, The Prep Pragmatist, The Budget Optimizer, The Pantry Hacker, The Comfort Cook, The Cravings Mediator, The Recovery Tracker, and The Edge Case Detective.

They argue for 3 seconds. You get one answer.

MATH FIRST

68 calculations. Peer-reviewed. Zero guesswork.

We don't use the generic formulas found in logging apps. KEXBI uses performance-grade equations tailored to high lean-mass athletes.

WHAT POWERS YOUR FUEL
01
BMR Model
Adj. for FFM
Calculates your true baseline — not population averages.
Katch & McArdle
02
Load Split
HR proportional
Adjusts fuel to match session intensity.
The Math Under the Surface
03
Gastric Buffer
Residence bounds
Hard limits on food near efforts to prevent GI shutdown.
de Oliveira et al.
04
Protein Dlvry
Every 3–4 Hours
Distributes protein carefully to keep synthesis elevated.
Areta et al.
05
Energy Floor
RED-S Prevention
Locks energy availability above the hormonal threshold.
Mountjoy et al.

Most nutrition apps stop at what. KEXBI calculates what, when, and why your biology needs it right now.

WHAT POWERS YOUR TIMING
01
Circadian Mrkr
DL Melan onset
Estimates your melatonin onset from sleep data alone.
Burgess & Eastman
02
Bio Midpoint
Sleep-cor. mid
Adapts meal timing to your biology, not a clock.
Roenneberg et al.
03
Sleep Impact
3-sec composite
Breaks sleep into three nutritional consequence layers.
The Math Under the Surface
04
Phase Shifting
Phase shifting
Adjusts timing based on your current circadian phase.
The Math Under the Surface
05
Rehydration
150% fluid rep.
Calculates exact fluid replacement capped at absorption.
Shirreffs protocol

These 10 are the ones you see. Behind them, 58 more equations run silently — covering gastric clearance, sleep-stage compensation, insulin gating, hydration indexing, and dozens more. 68 in total. Every one peer-reviewed.

Your baseline

Before your data is available, we establish your baseline. Then it updates as real data comes in.

Performance & MaintenanceBalance logic
Fat LossAggressive Cut
RecompositionSlow metric shift
Lean BulkAnabolic surplus
System Output

Katch-McArdle Initialisation

Fat-Free Mass (FFM) ...
Baseline BMR ...
Rest Day Floor (TDEE) ...
Max Daily Deficit ...
If you connect a smart scale or wearable, these static numbers are replaced by dynamic daily calculations based on real recovery data.
THE CASE FOR AUTOMATION

A nutritionist improves outcomes. An engine improves them further.

Nutritionist
KEXBI Engine
Frequency
Periodic check-ins
Continuous micro-adjustments
Cost
Expensive retainer
Accessible infrastructure
Response
Reactive (days later)
Adaptive (in 3 minutes)
Data Sources
Verbal consultation
Live wearable biosignals

KEXBI doesn't replace the nutritionist's knowledge. It replaces the constraint that makes their knowledge stale by the time you open the fridge.

2.5×
Caloric timing
More accurate fuelling from morning-loaded calorie distribution.
Jakubowicz et al., Obesity 2013
4
Protein pulses
Precisely timed fuelling windows per day to trigger MPS.
Moore 2009 · Areta J Physiol 2013
22%
Underfuelling
Overnight MPS gain from pre-sleep casein — eliminated by the engine.
Res et al., MSSE 2012
30–90 g/h
Carb delivery
Matched to session demand — not guessed.
Jeukendrup, Sports Med 2014

What the engine prevents

23%
Insulin signalling
Impairment from sleep debt — bypassed by shifting carbs to morning.
Donga et al. 2010
3.0%
Metabolic rate drop
RMR suppression when EA falls short. KEXBI floor locks this.
Loucks & Thuma 2003
0%
Manual tracking adherence
Adherence at 6 months for manual apps. Decision fatigue kills compliance.
Industry average
150%
Fluid replacement
Post-workout fluid rep — matched to biological emptying limits.
Shirreffs et al., MSSE 1996

The Evolution of Tracking

MyFitnessPal tracks what happened. MacroFactor mathematically calculates what should happen. KEXBI orchestrates when it happens — anchoring the peer-reviewed math to your circadian rhythm and real-time biological state.

COHORT 001

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