MastersLab
02 // Body Composition
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Setup Calorie Model — Data Source
Option 1 — Manual
Tier 0
Option 1
No Body Scale
4 required inputs.
Mifflin-St Jeor BMR.
Confidence: Inferred (±10%)
Tier 1
Option 2
Hume Body Scale
Full body comp scan data.
Katch-McArdle BMR.
Confidence: Estimated (±10–15%)
Option 1 — Demographic Inputs (Mifflin-St Jeor)
Estimated BMR
—kcal/day
Inferred ±10%
Demographic baseline only.
Accuracy improves with body
composition data (Option 2).
Enter your Hume Body Scale results below. Hume API integration is in development — once connected, this will sync automatically.
Option 2 — Hume Body Scale Data (Katch-McArdle)
* Lean Body Mass drives the Katch-McArdle BMR calculation
Katch-McArdle BMR
—kcal/day
Estimated ±10–15%
Based on Lean Body Mass.
More accurate than demographic
baseline for athletic populations.
Active Calorie Model
BMR
—kcal
Formula
—
Inferred
Latest Current Metrics
Awaiting sync

Open app → Body tab → log a scan, then sync

History Scan Log
Log multiple body scans to see your trend over time.
Today Nutrition APEX Body More