How it Works
1. Calibrate Unit System.
2. Input Biological Mass and Stature.
3. Define Demographics (Age/Sex).
4. Compute Daily Energy Floor.
What is Basal Metabolic Rate Analyzer?
Basal Metabolic Rate (BMR) represents the minimum thermodynamic energy expenditure required to sustain vital physiological functions (respiration, circulation, cellular production) in a post-absorptive state.
Step-by-Step Guide
- Select Formula – Mifflin-St Jeor (Standard).
- Input Biometrics – Weight/Height.
- Define Demographics – Age/Sex.
- Compute – Energy floor.
Example
Input: 80kg, 180cm, 30yr, Male
Result: 1,780 kcal
FAQ
Is eating below BMR safe?
Chronic intake below BMR is clinically contraindicated as it risks nutrient deficiency and metabolic slowdown.
How does muscle affect BMR?
Lean tissue is metabolically expensive; increasing muscle mass elevates BMR.
Does BMR decline with age?
Yes, sarcopenia and hormonal changes typically reduce BMR by 1-2% per decade.
Mifflin-St Jeor vs Harris-Benedict?
Mifflin is currently validated as the most accurate for modern lifestyles.
Does illness affect BMR?
Yes, fever and trauma significantly increase metabolic demand.
⚕️ Safety First: This calculator provides general health estimates. It does not replace a clinical assessment by a doctor.
Conclusion
This figure represents your metabolic floor. Consistently consuming energy below this threshold can induce adaptive thermogenesis (metabolic adaptation), potentially hindering long-term health goals.