eating and activity habits of overweight children on weekdays and weekends objective to determine whether eating sedentary and physical activity behaviors differ on weekdays and weekends in a sample of children who are overweight and obesemethods eightyone children aged 69 years old who were overweight or obese and enrolled in a weight management program completed threeday food diaries and threeday previous day physical activity recalls pdpars for two weekdays and one weekend day all data were obtained at baseline prior to intervention deliveryresults children consumed a greater percentage of calories from fat t 215 p 004 and fewer fruits t 683 p 0001 vegetables t 291 p 0002 nonnutrient dense nnd snack foods t 558 p 0001 and sweetened drinks t 291 p 0005 on weekends children watched more television t 525 p 0001 expended more energy t 437 p 0001 and spent a greater percentage of time in moderatetovigorous physical activity p 0001 on weekends compared to weekdaysconclusions findings demonstrate a number of differences in childrens eating and activity habits on weekends and weekdays they also suggest that attending to differences in food intake and activity habits on weekdays and weekends separately may help to identify periods of high risk which could be modified with effective intervention approachestrial registration numbers nct00259324 nct00200265