Research

Energy balance

Midage women gain an average of 0.5 kg per year, driven by a daily energy imbalance of approximately 10 kcal, which can be prevented by small, sustained changes in physical activity, sitting time, and energy intake.

To prevent the typical midage weight gain of 0.5 kg per year, you do not need extreme diets or intense workouts. Focus on small, sustainable changes: increase your physical activity slightly, reduce sitting time, and monitor energy intake. These small shifts are sufficient to counteract the tiny daily energy imbalance that drives weight gain.

GoodSupportsHIGH confidence
On average, the women gained almost 0.5 kg per year [average 2.42 kg (95% confidence interval, 2.29 to 2.54) over 5 years]. ... The average weight gain equates with an energy imbalance of only about 10 kcal or 40 kJ per day, which suggests that small sustained changes in the modifiable behavioral variables could prevent further weight gain.
Wendy J. Brown et al. · Obesity Research · 2005

Why this rating

Large prospective cohort study (n=8071) with 5-year follow-up, though self-reported data is a limitation.

Source

Identifying the Energy Gap: Magnitude and Determinants of 5‐Year Weight Gain in Midage Women

Wendy J. Brown et al. · Obesity Research · 2005

DOI 10.1038/oby.2005.173

cohort · n=8071Cited 253×
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 →