This video establishes that timing of food intake is a modifiable risk factor that has an influence on energy regulation and the risk of obesity. It explains how our bodies are complex organisms regulated by a number of biological clocks that influence bodily functions. It then describes how timing of food intake can act as an external synchronizer of these systems and how dysregulation can lead to the development of disease as well as disruptions of different physiological variables. Most commonly observed in those who skip breakfast is the development of obesity, which is thought to be due to greater caloric intake during the evening hours and increased fat storage. Finally, the video explores different diets and their effect on nutrient consumption as it relates to current scientific literature.


Many students find themselves leaving important meals out of their day. Students are faced with an increasing number of tasks to complete within a limited period of time that require considerable resources and energy. In addition, students entering university or college may need to make thier own meals as well as do other tasks as they experience independence for the first time. Therefore, this video discusses the significance of timing on food intake and why it should be an important consideration for the health and overall success of the university student.

[Please complete our feedback form]

  • Johnston, J. D. (2014). Physiological links between circadian rhythms, metabolism, and nutrition. Experimental physiology, 99(9), 1133-1137.
  • Scheer, F. A., Hilton, M. F., Mantzoros, C. S., & Shea, S. A. (2009). Adverse metabolic and cardiovascular consequences of circadian misalignment. Proceedings of the National Academy of Sciences, 106(11), 4453-4458. Chicago
  • Van Cauter, E., Polonsky, K. S., & Scheen, A. J. (1997). Roles of circadian rhythmicity and sleep in human glucose regulation. Endocrine reviews, 18(5), 716-738.
  • O'reardon, J. P., Ringel, B. L., Dinges, D. F., Allison, K. C., Rogers, N. L., Martino, N. S., & Stunkard, A. J. (2004). Circadian eating and sleeping patterns in the night eating syndrome. Obesity, 12(11), 1789-1796.
  • Morgan, L., Hampton, S., Gibbs, M., & Arendt, J. (2003). Circadian aspects of postprandial metabolism. Chronobiology international, 20(5), 795-808.
  • Ma, Y., Bertone, E. R., Stanek III, E. J., Reed, G. W., Hebert, J. R., Cohen, N. L., ... & Ockene, I. S. (2003). Association between eating patterns and obesity in a free-living US adult population. American journal of epidemiology, 158(1), 85-92.
  • Shea, S. A., Hilton, M. F., Orlova, C., Ayers, R. T., & Mantzoros, C. S. (2005). Independent circadian and sleep/wake regulation of adipokines and glucose in humans. The Journal of Clinical Endocrinology & Metabolism, 90(5), 2537-2544. Chicago
  • Arble, D. M., Bass, J., Laposky, A. D., Vitaterna, M. H., & Turek, F. W. (2009). Circadian timing of food intake contributes to weight gain. Obesity, 17(11), 2100-2102.
  • Otway, D. T., Frost, G., & Johnston, J. D. (2009). Circadian rhythmicity in murine pre-adipocyte and adipocyte cells. Chronobiology international, 26(7), 1340-1354. Chicago
  • Gallant, A., Lundgren, J. & Drapeau, V. Nutritional Aspects of Late Eating and Night Eating. Curr Obes Rep (2014) 3: 101.
  • Huang, W., Ramsey, K. M., Marcheva, B., & Bass, J. (2011). Circadian rhythms, sleep, and metabolism. The Journal of clinical investigation, 121(6), 2133.
  • Chowdhury, E. A., Richardson, J. D., Holman, G. D., Tsintzas, K., Thompson, D., & Betts, J. A. (2016). The causal role of breakfast in energy balance and health: a randomized controlled trial in obese adults. American Journal of Clinical Nutrition,103(3), 747-756. doi:10.3945/ajcn.115.122044
  • Berg, C., & Forslund, H. B. (2015). The Influence of Portion Size and Timing of Meals on Weight Balance and Obesity. Current Obesity Reports,4(1), 11-18. doi:10.1007/s13679-015-0138-y
  • Jakubowicz, D., Barnea, M., Wainstein, J., & Froy, O. (2013). High Caloric intake at breakfast vs. dinner differentially influences weight loss of overweight and obese women. Obesity,21(12), 2504-2512. doi:10.1002/oby.2046