Glossary
BMR
Updated 2026-07-01By Chris RichardsAll terms
Definition
Basal Metabolic Rate estimates resting calorie burn before you add daily activity.
Definition
BMR is the energy required to maintain basic physiological functions at rest. Formulas like Mifflin-St Jeor estimate it from sex, age, height, and weight.
Sources
- [1] Mifflin MD, St Jeor ST, et al. “A new predictive equation for resting energy expenditure in healthy individuals” (1990) — American Journal of Clinical Nutrition 51:241–247
General nutrition information, not medical advice. Calorie and macro targets are estimates — talk to a doctor or a registered dietitian before changing your diet, especially if you are pregnant, managing a health condition, or have a history of disordered eating.
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