Question 1

How is calorie need calculated?

Accepted Answer

Calorie needs are estimated using the Mifflin-St Jeor equation, which factors in weight, height, age, and sex to calculate Basal Metabolic Rate (BMR). BMR is then multiplied by an activity factor (sedentary = 1.2, very active = 1.9) to get Total Daily Energy Expenditure (TDEE).

Question 2

What is the difference between BMR and TDEE?

Accepted Answer

BMR (Basal Metabolic Rate) is the calories your body burns at rest — the minimum needed to sustain basic functions like breathing and circulation. TDEE (Total Daily Energy Expenditure) is BMR multiplied by your activity level — it's the total calories burned in a day including exercise.

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