Metabolic Rate — Why Calorie Math Does Not Work for You Specifically
BMR varies up to 15% between identical individuals. Here is what actually drives yours.
Track This Biomarker Free → ← All BiomarkersWhat Is Metabolic Rate — Why Calorie Math Does Not Work for You Specifically?
Basal Metabolic Rate (BMR) is the energy your body burns at complete rest — typically 60–75% of total daily energy expenditure. Most people's TDEE estimates are wrong by 300–600 calories because standard formulas do not account for individual metabolic variation driven by thyroid function, cortisol, muscle mass, and gut microbiome composition.
What Causes Metabolic Rate to Change
The most common drivers behind a change in Metabolic Rate are:
- Muscle loss — each pound of muscle burns 6–10 calories per day at rest
- Chronic dieting — extended caloric restriction suppresses BMR by 10–15%
- Hypothyroidism — subclinical cases often missed, reduce BMR significantly
- Poor sleep — sleep deprivation reduces BMR and increases fat storage hormones
- Aging — BMR declines 2–3% per decade without muscle mass intervention
- Cortisol elevation — promotes muscle catabolism and fat storage simultaneously
How Hunuu Tracks Metabolic Rate
Hunuu tracks BMR estimates from wearable data (activity, sleep, HRV, skin temperature) and flags trends that suggest metabolic suppression or acceleration. The Metabolism Meter gives you a real-time metabolic health score from 0–100.
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