Research

Energy balance

Females have a significantly lower sedentary 24-hour energy expenditure (24EE) than males, even after adjusting for fat-free mass, fat mass, age, and spontaneous physical activity.

Women naturally burn about 100-125 fewer calories per day than men of similar size and activity levels. This is a small but real physiological difference. To manage weight, women may need to be slightly more precise with caloric intake or slightly more active than men with similar body composition, but the difference is manageable and not a barrier to health.

GoodSupportsHIGH confidence
In summary, sedentary 24EE is 5-10% lower in females compared with males after adjusting for differences in body composition, age, and activity.
R Ferraro et al. · Journal of Clinical Investigation · 1992

Why this rating

Large sample size (n=235), rigorous measurement (respiratory chamber), and robust statistical adjustment for body composition and activity.

Source

Lower sedentary metabolic rate in women compared with men.

R Ferraro et al. · Journal of Clinical Investigation · 1992

DOI 10.1172/jci115951

cross_sectional · n=235Cited 213×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →