TDEE formulas carry a ±15% error bar — the estimate, the 14-day verification method, and energy balance as neutral math.
Maintenance energy from Mifflin–St Jeor × activity factor — with the honest ±15% error bar most TDEE tools hide.
Your estimated maintenance intake plus the 14-day verification protocol that turns the estimate into a measurement.
Turn 14 days of logging and weighing into your measured TDEE — the method that beats every formula.
Intake vs expenditure as neutral arithmetic — surplus, balance or deficit shown without judgement.
Energy from everything that isn't sleeping, eating or sport — the most underrated lever in daily expenditure.
Answer three concrete questions instead of guessing 'moderately active' — get a defensible TDEE multiplier.
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