How it works
BMR uses the Mifflin–St Jeor equation, then multiplies it by an activity factor.
Estimate maintenance calories from age, sex, height, weight and activity.
Estimated daily maintenance energy.
BMR uses the Mifflin–St Jeor equation, then multiplies it by an activity factor.
Maintenance calories estimate the daily energy needed to keep body weight stable. Use the result as a starting point: actual needs vary with activity, metabolism and changes over time.
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They estimate the energy needed to keep body weight stable.