2Jebb SA, Rennie KL & Cole TJ (2004) Prevalence of overweight and obesity among young people in Great Britain. Public Health Nutr 7, 461–465.
3Zizza C, Siega-Riz AM & Popkin BM (2001) Significant increase in young adults' snacking between 1977–1978 and 1994–1996 represents a cause for concern! Prev Med 32, 303–310.
4de Graaf C (2006) Effects of snacks on energy intake: an evolutionary perspective. Appetite 47, 18–23.
5Jahns L, Siega-Riz AM & Popkin BM (2001) The increasing prevalence of snacking among US children from 1977 to 1996. J Pediatr 138, 493–498.
6Sebastian R, Cleveland L, Goldmad J & Moshfegh A (2007) Snacking behaviour of children and teenagers in the United States. FASEB 20, A189–A190.
7Nielsen SJ & Popkin BM (2003) Patterns and trends in food portion sizes, 1977–1998. JAMA 289, 450–453.
8Ovaskainen ML, Reinivuo H, Tapanainen H, Hannila ML, Korhonen T & Pakkala H (2006) Snacks as an element of energy intake and food consumption. Eur J Clin Nutr 60, 494–501.
9Summerbell CD, Moody RC, Shanks J, Stock MJ & Geissler C (1995) Sources of energy from meals versus snacks in 220 people in four age groups. Eur J Clin Nutr 49, 33–41.
10Gregory J & Lowe S (2000) National Diet and Nutrition Survey: Young People Aged 4 to 18 Years, , vol. 1. London: Stationery Office.
11McGloin AF, Livingstone MB, Greene LC, et al. (2002) Energy and fat intake in obese and lean children at varying risk of obesity. Int J Obes Relat Metab Disord 26, 200–207.
12Bates CJ, Prentice AM, Jackson LV, Smithers G, Wenlock R & Farron M (2002), Appendix C. Feasibility Study Report. The National Diet and Nutrition Survey: Young People Aged 4–18 Years, . London: Social Survey Division of the Office of National Statistics.
13Food Standards Agency (2002) McCance and Widdowson's The Composition of Foods, Sixth summary edition. Cambridge: Royal Society of Chemistry.
14Cole TJ, Bellizzi MC, Flegal KM & Dietz WH (2000) Establishing a standard definition for child overweight and obesity worldwide: international survey. Br Med J 320, 1240–1243.
15Institute of Medicine of the National Academies (2002) Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids. Washington, DC: National Academies Press.
16Rennie KL, Coward A & Jebb SA (2007) Estimating under-reporting of energy intake in dietary surveys using an individualised method. Br J Nutr 97, 1169–1176.
17Rennie KL, Jebb SA, Wright A & Coward WA (2005) Under-reporting of energy intake in the National Diet and Nutrition Survey of young people. Br J Nutr 93, 241–247.
18Black AE & Cole TJ (2000) Within- and between-subject variation in energy expenditure measured by the doubly-labelled water technique: implications for validating reported dietary energy intake. Eur J Clin Nutr 54, 386–394.
19Nielsen SJ, Siega-Riz AM & Popkin BM (2002) Trends in food locations and sources among adolescents and young adults. Prev Med 35, 107–113.
20Berkey CS, Rockett HR, Field AE, Gillman MW & Colditz GA (2004) Sugar-added beverages and adolescent weight change. Obes Res 12, 778–788.
21Malik VS, Schulze MB & Hu FB (2006) Intake of sugar-sweetened beverages and weight gain: a systematic review. Am J Clin Nutr 84, 274–288.
22DiMeglio DP & Mattes RD (2000) Liquid versus solid carbohydrate: effects on food intake and body weight. Int J Obes Relat Metab Disord 24, 794–800.
23Raben A, Vasilaras TH, Moller AC & Astrup A (2002) Sucrose compared with artificial sweeteners: different effects on ad libitum food intake and body weight after 10 wk of supplementation in overweight subjects. Am J Clin Nutr 76, 721–729.
24Gibson S & Neate D (2007) Sugar intake, soft drink consumption and body weight among British children: further analysis of National Diet and Nutrition Survey data with adjustment for under-reporting and physical activity. Int J Food Sci Nutr 58, 445–460.
25Livingstone MB & Black AE (2003) Markers of the validity of reported energy intake. J Nutr 133, Suppl. 3, 895S–920S.