نتایج جستجو برای: portion

تعداد نتایج: 59729  

Journal: :Health education research 2010
Willemijn M Vermeer Ingrid H M Steenhuis Jacob C Seidell

This qualitative study assessed consumers' opinions of food portion sizes and their attitudes toward portion-size interventions located in various point-of-purchase settings targeting overweight and obese people. Eight semi-structured focus group discussions were conducted with 49 participants. Constructs from the diffusion of innovations theory were included in the interview guide. Each focus ...

Journal: :Public health nutrition 2000
D C Welten R A Carpenter R S McPherson S Brodney D Douglass J B Kampert S N Blair

OBJECTIVE Because the percentage of missing portion sizes was large in the Aerobics Center Longitudinal Study (ACLS), careful consideration of the accuracy of standard portion sizes was necessary. The purpose of the present study was to investigate the consequences of using standard portion sizes instead of reported portion sizes on subjects' nutrient intake. METHODS In 2307 men and 411 women...

Journal: :Journal of the Royal Society of Medicine 1896

Journal: :Proceedings of the Nutrition Society 2015

Journal: :Journal of the American Medical Association 1909

Journal: :The Boston Medical and Surgical Journal 1879

Journal: :Journal of diabetes science and technology 2012
Christina D Lee Junghoon Chae TusaRebecca E Schap Deborah A Kerr Edward J Delp David S Ebert Carol J Boushey

BACKGROUND Diet is a critical element of diabetes self-management. An emerging area of research is the use of images for dietary records using mobile telephones with embedded cameras. These tools are being designed to reduce user burden and to improve accuracy of portion-size estimation through automation. The objectives of this study were to (1) assess the error of automatically determined por...

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