Why do some people get fatter than others when they eat too much?
PREDICTORS OF BODY COMPOSITION AND BODY ENERGY CHANGES IN RESPONSE TO CHRONIC OVERFEEDING
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists fed 24 healthy young men a lot of extra food for 100 days and saw that some gained more fat than others—even though they all ate the same amount.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 538 / 90
Evidence Score
Participants are randomly assigned to treatment or control groups, minimizing bias. Considered the gold standard for testing whether an intervention causes an effect.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists fed 24 healthy young men a lot of extra food for 100 days and saw that some gained more fat than others—even though they all ate the same amount.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 538 / 90
Evidence Score
Participants are randomly assigned to treatment or control groups, minimizing bias. Considered the gold standard for testing whether an intervention causes an effect.
Publication
Authors
Bouchard C, Tchernof A, Tremblay A
Related Content
Claims (6)
When a person consistently consumes more energy than they expend, the excess energy is stored as body fat.
In young, lean men, those with higher cardiovascular fitness before overeating tend to gain less fat and total body energy when consuming excess calories for 100 days, indicating that fitness level may affect how the body stores or uses extra calories.
In young lean men, those with higher levels of a specific muscle enzyme involved in energy production tend to gain less body fat when consuming excess calories over time.
In young lean men, individuals with naturally higher levels of a hormone precursor called androstenediol-sulfate tend to gain less fat and store less excess energy when consuming a high-calorie diet for an extended period.
In young, lean men, individuals with higher levels of the hormone leptin in their blood before overeating tend to gain more fat and total energy when consuming excess calories over time.