Submitted to: International Conference of Dietary Assessment Methods
Publication Type: Abstract Only
Publication Acceptance Date: March 24, 2006
Publication Date: April 26, 2006
Citation: Rhodes, D.G., Cleveland, L.E., Murayi, T., Moshfegh, A.J. 2006. The impact of weekend eating on nutrient intakes [abstract]. 6th International Conference on Dietary Assessment Methods, April 27-29, 2006, Copenhagen, Denmark. Program & Abstracts. P12-10. Technical Abstract: Limited research suggests that energy intake is greater on weekend days (Friday to Sunday) than on weekdays. This study focuses on nutrient intake differences between weekend days and weekdays in a sample of 514 healthy, weight-stable men and women aged 30-69 yr. Three 24-hour dietary recalls were obtained using the USDA Automated Multiple Pass Method. Recalls were conducted 4-5 days apart and included at least one weekend day. Mean daily energy intake was 9% higher on weekend days than weekdays (2475 kcal vs. 2270 kcal, p<.001). This increase in energy intake was greater in obese subjects; 16% and 17% for females and males, respectively. Fat was the largest contributor to this higher energy intake. The increase in kilocalories from fat on weekend days compared to weekdays was 89 kcal overall, and 132 kcal for obese subjects. Mean intakes for other macronutrients and alcohol were also higher on weekend days. Differences are also reported for several micronutrients. Results of this study illustrate the substantial differences in nutrient intakes between weekend days and weekdays and the importance of considering weekend/weekday effects in dietary assessment.