Basal Metabolic Rate (BMR) and TDEE: A Scientific Approach to Weight
Learn how your metabolism works, what BMR and TDEE are, and how to correctly calculate your daily calorie needs for weight loss or muscle gain.
Managing your weight is a thermodynamic equation of energy balance. To achieve success in changing your body composition, you need to understand two basic concepts: Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE).
What is BMR (Basal Metabolic Rate)?
Basal Metabolic Rate is the minimum number of calories your body needs to sustain life-support functions while at complete rest (breathing, circulation, temperature regulation). Even if you lie completely still all day, your body burns this amount of calories.
What is TDEE (Total Daily Energy Expenditure)?
TDEE is the total amount of energy you expend in a 24-hour period, which includes BMR, physical activity (sports, walking), and the thermic effect of food digestion.
How to Use This Knowledge to Manage Weight?
- For Weight Loss: Create a safe calorie deficit (10-20% below your TDEE). But remember, never eat below your BMR!
- For Muscle Gain: Create a controlled calorie surplus (10-15% above your TDEE) combined with progressive resistance training.
For a precise, personalized calculation, use our certified BMR and TDEE Calculator.
common.blog.related_tool
common.blog.related_tool_desc