Is snacking good or bad for health: An overview
Tóm tắt
Snacking, or the habit of eating little and often, has been postulated to have a range of health benefits in relation to appetite control, bodyweight management and improved blood glucose control in diabetics and pre‐diabetics. However, there is widespread agreement that our current obesogenic environment is encouraging overeating in response to increased food portion sizes, palatability and/or energy‐density of foods, alongside the many social and psychological cues to eat. In this context, and as findings on the health effects of snacking are conflicting, the question remains as to whether more frequent eating and snacking can be of benefit to health. Snacks, if added to habitual meal intake, with no compensation for snack energy contribution, are likely over time to lead to positive energy balance. Hence, snacking might be a contributing factor to the obesity epidemic, in addition to more established factors, such as food choice and physical activity. This paper explores the existing evidence concerning the impact of snacking on bodyweight and the behavioural and metabolic response to snacking. The impact of snacking on cognitive function is also discussed. The review highlights the need for further research as, despite many years of scientific interest in snacking, the lack of consistency in study design and snacking definitions and the array of potential confounding factors (
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Tài liệu tham khảo
AdamsJ O'KeeffeM&AdamsonA(2005)Change in snacking habits and obesity over 20 years in children aged 11 to 12 years. Project NO9 019 (Jan–Sept 2005). Final report to the Food Standards Agency.
ADG (Australian Dietary Guidelines)(2013)Australian Government National Health and Medical Research Council GPO Box 1421 Canberra Australia. N55a.
Andersson I, 1996, Meal patterns in obese and normal weight men: the ‘Gustaf’ study, European Journal of Clinical Nutrition, 50, 639
CASH (Consensus Action on Salt and Health)(2012)CASH Report: Technical solutions to salt reduction across 8 categories of food. Available at:http://www.actiononsalt.org.uk/news/Salt%20in%20the%20news/2012/79220.pdf(accessed 3 June 2013).
CWC (Caroline Walker Trust), 2004, Eating Well for Older People: Practical and Nutritional Guidelines for Food in Residential and Nursing Homes and for Community Meals
DebryG AzouaouR VassilitchIet al. (1973)Ponderal losses in obese subjects submitted to restricted diets differing by nibbling and by lipid and carbohydrate.Energy balance in man. Paris: Masson:305–310.
DH (Department of Health) (UK)(2009)Change4Life. Available at:http://www.nhs.uk/Change4Life/Pages/healthy‐eating.aspx(accessed 8 May 2013).
Drummond S, 1996, A critique of the effects of snacking on body weight status, European Journal of Clinical Nutrition, 50, 779
EUFIC (European Food Information Council)(2006)Dental Health. Available at:http://www.eufic.org/article/en/expid/basics‐dental‐health/(accessed 9 June 2013).
Foresight, 2007, Tackling Obesities: Future Choices‐Project Report
FSA (Food Standards Agency)(2007)Guidance on food served to older people in residential care. Available at:http://www.food.gov.uk/multimedia/pdfs/olderresident.pdf(accessed 15 July 2013).
Fricker J, 1990, Circadian rhythm of energy intake and corpulence status in adults, International Journal of Obesity, 14, 387
Green SM, 1996, Subjective and objective indices of the satiating effect of foods. Can people predict how filing a food will be?, European Journal of Clinical Nutrition, 50, 798
Green SM, 1996, Effect of fat‐ and sucrose‐containing foods on the size of eating episodes and energy intake in lean dietary restrained and unrestrained females: potential for causing overconsumption, European Journal of Clinical Nutrition, 50, 625
HankeyCR LeslieWS&EunsonJ(2011)The eatwell week: the application of eatwell plate advice to weekly food intake. Food Standards Agency in Scotland Project No. S14048. Final Report. Available at:http://www.foodbase.org.uk/results.php?f_report_id=712(accessed 15 May 2013).
HSCIC (Health and Social Care Information Centre), 2013, Statistics on Obesity, Physical Activity and Diet: England, 2013
Jenkins DJ, 1994, Low glycemic index: lente carbohydrates and physiological effects of altered food frequency, The American Journal of Clinical Nutrition, 59, 706S, 10.1093/ajcn/59.3.706S
Jones PJ, 1993, Meal‐frequency effects on plasma hormone concentrations and cholesterol synthesis in humans, The American Journal of Clinical Nutrition, 57, 868, 10.1093/ajcn/57.6.868
Kant AK, 1995, Frequency of eating occasions and weight change in NHANES I Epidemiologic Follow‐up study, International Journal of Obesity, 19, 468
KerrM&McCaffreyT(2007)Evaluation of snacking behaviour in children and adolescents: associations with body composition physical activity and risk of obesity. Project N09020. Final report to the Food Standards Agency.
Kirk TR, 1999, Long‐term snacking intervention did not lead to weight gain in free‐living man, Scandinavian Journal of Nutrition, 34, 3
Livsmedelsverket(2005)Svenska naringsrekommendationerPO Box 622 S‐751 26 Uppsala: Sweden.
Mazlan N, 2006, Effects of increasing increments of fat‐ and sugar‐rich snacks in the diet on energy and macronutrient intake in lean and overweight men, The British Journal of Nutrition, 96, 596, 10.1079/BJN20061750
McGrath SA, 1994, The effects of altered frequency of eating on plasma lipids in free‐living healthy males on normal self‐selected diets, European Journal of Clinical Nutrition, 48, 402
MH (Ministry of Health), 2012, Food and Nutrition Guidelines for Healthy Children and Young People (Aged 2–18 years): A Background Paper
Ortega RM, 1998, Relationship between the number of daily meals and the energy and nutrient intake in the elderly. Effect on various cardiovascular risk factors, Nutricion Hospitalaria, 13, 186
Responsibility Deal(2013)UK Department of Health. Available at:https://responsibilitydeal.dh.gov.uk/pledges/pledge/?pl=9(accessed 3 June 2013).
RIVM/TNO (Rijksintituut voor de Volksgezondheid en Milieuhygiëne/Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek), 2004, Dutch National Food Consumption Survey 2007–2010: Diet of Children and Adults aged 7 to 69 years
Rolls BJ, 1991, Time course of effects of preloads high in fat or carbohydrate on food intake and hunger ratings in humans, The American Journal of Physiology, 260, R756
Summerbell CD, 1995, Sources of energy from meals versus snacks in 220 people in four age groups, European Journal of Clinical Nutrition, 49, 33
Summerbell CD, 1996, Relationship between feeding pattern and body mass index in 220 free‐living people in four age groups, European Journal of Clinical Nutrition, 50, 513
USDA & USDHHS (US Department of Agriculture and US Department of Health and Human Services), 2010, Dietary Guidelines for Americans, 2010
Van Cauter E, 1992, Circadian modulation of glucose and insulin responses to meals: relationship to cortisol rhythm, The American Journal of Physiology, 262, E467
Verboeket‐van de Venne WP, 1993, Frequency of feeding, weight reduction and energy metabolism, International Journal of Obesity and Related Metabolic Disorders, 17, 31
Young CM, 1971, Frequency of feeding, weight reduction, and nutrient utilization, Journal of the American Dietetic Association, 59, 473, 10.1016/S0002-8223(21)14116-1