100 places · Wave 1: 25 athletes · Applications close when full · April 2026 calibration window
BUILT FROM YOUR BIOLOGY

You do the work.
We decide what you eat.

Your day is already built around your body and your goal, and adjusts to your workload and body response.

Free to join · No card required
8-week beta via TestFlight · iOS 18+
KEXBI dashboard — deload session with chrono timer and pre-lunch water protocol
Connects with
Works with Apple Health
Garmin
Oura
Whoop
THE GAP

You are Data-Rich but Insight-Poor.

You track your sleep, recovery, and VO2 max. None of it tells you what to eat before a hard session.

So you guess. Or repeat yesterday.

KEXBI removes the guesswork. Your data is processed in parallel and resolved into one plan — fuel, hydration, recovery — timed to your day.

300 kcal short on a heavy week

Recovery capacity drops. The next block compounds the deficit. Most athletes interpret the fatigue as "I'm not training hard enough."

Fuelling by feel on race day

Under-fuelled at 90 minutes. Carb window missed. Pace drops 12%. Four months of training resolves into a PR that didn't happen.

Undereating without noticing

No logging app can detect it — because none hold the lean-mass math to set your floor. KEXBI is structurally the only consumer product that can.

Running a deficit before lunch

Your nutritionist gives you a balanced daily target. But depending on when you train vs when you eat, you fall into hour-by-hour energy deficits that spike cortisol and suppress metabolic rate — even if the day's total calories are correct. No human coach can monitor this in real time.

HOW KEXBI WORKS

One system. Three inputs. One plan.

Step 01 · Read

Your biology, every morning.

KEXBI reads your sleep stages, HRV, training load, and body composition from your wearable — every morning. No manual entry. The signal arrives before you open the app.

Step 02 · Think

The math is argued. You get one answer.

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

Scientific calculations grounded in peer-reviewed research set your floor, ceiling, and timing. Think of them like a team of specialists—a sleep analyst, a metabolic mathematician, a dietitian, and 23 more nodes process the data.

Step 03 · Fuel

An adaptive plan from your kitchen.

An adaptive meal plan built from the food already in your kitchen. Timed to your session. Adjusted when life happens. Prep steps, shopping list, and portion sizes — done.

BUILT ON SCIENCE

68 calculations. Peer-reviewed. Zero guesswork.

2.5×
Caloric timing
More weight loss from morning-loaded calories vs. evening-loaded.
Jakubowicz et al., Obesity 2013
4 pulses
Protein delivery
Protein distributed across the day — every 3–4h — to trigger MPS.
Moore 2009 · Areta J Physiol 2013
22%
Overnight MPS gain
Overnight muscle protein synthesis gain from a pre-sleep casein feed.
Res et al., MSSE 2012
68
Total calculations
Scientific calculations grounded in peer-reviewed research.
The Math Under the Surface
NOT FOR EVERYONE

KEXBI is a selection mechanism.
Not a signup form.

Built for you if

  • You train 4–6 days a week and take fuelling seriously
  • You already track your body (Whoop, Garmin, Oura, Apple Watch)
  • You've outgrown calorie counters and want adaptive plans
  • You'll commit to 8 weeks of honest data

Not for you if

  • ×
    You want a calorie target and a rough plan
  • ×
    You're looking for a weight-loss algorithm
  • ×
    You expect results without consistency
  • ×
    You rely on intuition instead of data
"I was 25.5 stone with a BMI of 47 — clinically off the scale. I didn't have the money for a private nutritionist, so I spent seven years building one that fits in your pocket. This isn't about counting calories. It's about ensuring you have the energy to fill every minute of this precious life."
— Ben, Founder
COHORT 001

100 athletes. Eight weeks. One calibration phase.

If you're accepted, your plan starts immediately.

Cohort 001 is open. Free to join, no credit card, applications reviewed within 48 hours.

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