Basal Metabolic Rate (BMR)

The Basal Metabolic Rate (BMR) represents the amount of energy your body burns at complete rest – without movement, digestion, or physical activity. It supports your most vital functions: heartbeat, breathing, brain activity, cellular processes, and organ maintenance. For most people, the BMR accounts for the largest share of daily calorie expenditure – often up to 70 %. It is influenced by factors such as:

Body weight and lean muscle mass
Sex and age
Hormonal balance (e.g. thyroid, testosterone)
Genetics and metabolic rate

👉 To estimate your BMR, you can use scientifically validated formulas like:

Mifflin-St. Jeor
Katch-McArdle

For more precise results, methods such as bioelectrical impedance analysis (BIA) or indirect calorimetry are recommended.

👉 Basal Metabolic Rate – Overview of Measurement & Formulas (PubMed)

🔗 Related glossary term: Metabolism