Excess weight gain occurs when more calories are consumed than expended over a long period of time. Accurate translation between changes in calories and changes in weight is important for setting goals and for evaluating interventions at both the individual and population levels. For years, a simple rule of thumb has been used for predicting weight change: 3,500 calories equals one pound of body weight change. However, emerging research demonstrates that the math is not that straightforward, and the 3,500-calorie rule will create overly optimistic predictions of weight loss, oftentimes being in error by many fold. This brief presents new mathematical models that can be used to calculate the impact of calories on body weight in both adults and children, and several useful rules of thumb that can estimate changes at the population level. These models suggest that the obesity epidemic was driven by much larger changes in calorie intake than previously believed and will require aggressive strategies to reverse.
From Calories to Weight Change in Children and Adults: The State of the Science
Food Environment Near Schools and Body weight-A Systematic Review of Associations by race/ethnicity, Gender, Grade, and Socio-Economic Factors
Previous research reported modest associations between food environments near schools and adiposity among children overall. The associations within sociodemographic subgroups have not been synthesized. This review assessed the evidence on the associations between food environments near schools and childhood obesity within different demographic and socio-economic subgroups. PubMed and Scopus databases … More
Use of Electronic Health Record Data to Study the Association of Sugary Drink Consumption With Child Weight Status
Sugar-sweetened beverages (SSBs) and, to some extent, fruit juice are modifiable risk factors for childhood obesity. Data on consumption have not been previously systematically collected in the electronic health record (EHR) in a way that could facilitate observational research and population health management. In 2017 to 2018, we used data … More
One of the most pressing unmet challenges for preventing and controlling epidemic obesity is ensuring that socially disadvantaged populations benefit from relevant public health interventions. Obesity levels are disproportionately high in ethnic minority, low-income, and other socially marginalized U.S. population groups. Current policy, systems, and environmental change interventions target obesity-promoting … More