Health & Fitness

Body Mass Index is weight in kilograms divided by height in metres squared, used as a quick screening figure for whether weight may be a health concern. It cannot tell muscle from fat, so athletes may read as “overweight,” and it does not account for age, sex, or where fat is stored — treat it as a rough indicator, not a diagnosis.

BMR (basal metabolic rate) is the energy your body burns at complete rest just to stay alive. TDEE (total daily energy expenditure) is BMR multiplied by an activity factor to include movement, exercise, and digestion — so TDEE is the fuller estimate of the calories you burn in a day.

No. These tools give informational estimates based on population formulas, and individual results vary widely. They are not a substitute for professional evaluation — consult a doctor or registered dietitian before making significant changes to diet, exercise, or weight.

Macros are the three energy-providing nutrients, and their calories add up to your total intake: protein and carbohydrates supply about 4 calories per gram, while fat supplies about 9. Splitting a calorie target into protein, carbs, and fat is what people mean by setting their macros.