Alcohol Consumption and Body Weight Dynamics
Summary
Alcoholic beverages are a globally prevalent source of dietary energy, supplying approximately 7 kcal per gram and contributing to overall energy balance. Patterns of consumption range from light‐to‐moderate intake, which may be neutral or even inversely related to adiposity gain, through to heavy or binge drinking, which more consistently predicts weight gain and central fat accumulation. The complex interplay between alcohol’s energy density, its weak satiety signals relative to solid food, and its impact on metabolic pathways can promote excess energy intake. Psychological factors such as appetite stimulation, social and cultural contexts of drinking, and interactions with dietary fats further modulate body weight dynamics. Epidemiological evidence often displays J- or inverted-J-shaped associations between consumption level and adiposity, reflecting heterogeneity in individual response and lifestyle factors. Methodological variations in measuring body composition, drinking patterns and confounding lifestyle behaviours have contributed to conflicting findings, underscoring the need for standardised approaches. Understanding these dynamics is of critical public health importance given rising obesity prevalence and the ubiquity of alcohol consumption worldwide.
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Alcohol Consumption and Body Weight Dynamics publication trend
The graph below shows the total number of articles in alcohol consumption and body weight dynamics across all publications each year (not limited to Nature Index journals).
Technical terms
Body mass index (BMI): A ratio of body weight (kg) to height (m²) used to classify underweight, normal weight, overweight and obesity.
Waist circumference (WC): A measure of abdominal adiposity linked to cardiometabolic risk.
Adiposity: The proportion of total body mass composed of fat tissue.
Binge drinking: The consumption of a large volume of alcohol in a short period (typically ≥4–5 standard drinks per occasion).
Energy density: The amount of energy (kilocalories) provided per gram of a substrate, with alcohol contributing 7 kcal/g.
References
- The association between alcohol intake and obesity in a sample of the Irish adult population, a cross-sectional study. BMC Public Health (2023).
- Association between Alcohol Consumption and Body Composition in Russian Adults and Patients Treated for Alcohol-Related Disorders: The Know Your Heart Cross-Sectional Study. International Journal of Environmental Research and Public Health (2023).
- ‘Joining the Dots’: Individual, Sociocultural and Environmental Links between Alcohol Consumption, Dietary Intake and Body Weight—A Narrative Review. Nutrients (2021).
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