Results 11 to 20 of about 128,673 (235)

The international food unit: a new measurement aid that can improve portion size estimation [PDF]

International Journal of Behavioral Nutrition and Physical Activity, 2017
Background Portion size education tools, aids and interventions can be effective in helping prevent weight gain. However consumers have difficulties in estimating food portion sizes and are confused by inconsistencies in measurement units and ...
T. Bucher, M. Weltert, M.E. Rollo, S.P. Smith, W. Jia, C.E. Collins, M. Sun   +6 more
doaj   +2 more sources

Optimizing portion-size estimation aids: a formative evaluation in Malawi. [PDF]

Public Health Nutr, 2019
AbstractObjective:To investigate preferences for and ease-of-use perceptions of different aspects of printed and digitally displayed photographic portion-size estimation aids (PSEA) in a low-resource setting and to document accuracy of portion-size selections using PSEA with different visual characteristics.Design:A convergent mixed-methods design and ...
Schnefke CH, Thakwalakwa C, Muth MK, Phuka J, Coates J, Rogers B, Colaiezzi B, Bell W, Flax VL.   +8 more
europepmc   +4 more sources

Development and validation of a food photography manual, as a tool for estimation of food portion size in epidemiological dietary surveys in Tunisia

Libyan Journal of Medicine, 2016
Background: Estimation of food portion sizes has always been a challenge in dietary studies on free-living individuals. The aim of this work was to develop and validate a food photography manual to improve the accuracy of the estimated size of consumed ...
Mongia Bouchoucha, Mouna Akrout, Hédia Bellali, Rim Bouchoucha, Fadwa Tarhouni, Abderraouf Ben Mansour, Béchir Zouari   +6 more
doaj   +3 more sources

Estimation accuracy of bean bags as portion size estimation aids for amorphous foods

The South African Journal of Clinical Nutrition
Objective: A study was undertaken to explore the portion size estimation accuracy of bean bags as low-cost volumetric portion size estimation aids for amorphous foods.Designs: Three observational, cross-sectional and three experimental/quasi-experimental
Friedeburg Anna Maria Wenhold, Una Elizabeth MacIntyre   +1 more
doaj   +3 more sources

The Design of a Mobile Portion Size Estimation Interface for a Low Literacy Population. [PDF]

Int Conf Pervasive Comput Technol Healthc, 2011
Being aware of one's portion sizes is a key component of maintaining a healthy diet, however, it is difficult for individuals especially low literacy populations to estimate their consumption. Nutritional monitoring applications can help but most of them are designed for people with high literacy and numeracy skills.
Chaudry B, Connelly K, Siek KA, Welch JL.   +3 more
europepmc   +4 more sources

Food photographs in portion size estimation among adolescent Mozambican girls. [PDF]

Public Health Nutr, 2013
AbstractObjectiveTo assess the validity of food photographs in portion size estimation among adolescent girls in Mozambique. The study was carried out in preparation for the larger ZANE study, which used the 24 h dietary recall method.DesignLife-sized photographs of three portion sizes of two staple foods and three sauces were produced.
Korkalo L, Erkkola M, Fidalgo L, Nevalainen J, Mutanen M.   +4 more
europepmc   +4 more sources

Performance Evaluation of 3 Large Language Models for Nutritional Content Estimation from Food Images [PDF]

Current Developments in Nutrition
Background: Traditional dietary assessment methods face limitations including recall bias, participant burden, and portion size estimation errors. Recent advances in artificial intelligence, particularly multimodal large language models (LLMs), offer ...
Jonatan Fridolfsson, Emma Sjöberg, Meri Thiwång, Stefan Pettersson   +3 more
doaj   +2 more sources

Pilot study: PORTION-O-MAT—a mixed reality solution for investigating perceptual and behavioural abnormalities during food portioning in adolescents with anorexia nervosa [PDF]

Eating and Weight Disorders
Purpose Anorexia nervosa (AN) is a severe eating disorder characterized by perceptual distortions and restrictive eating behaviours. This pilot study examines portion size estimation in adolescent AN patients using a mixed-reality (MR) approach.
Jessica Gutheil, Oliver Kratz, Martin Diruf, Stefanie Horndasch   +3 more
doaj   +2 more sources

Development of a Digital Photographic Food Atlas as a Portion Size Estimation Aid in Japan [PDF]

Nutrients, 2022
Keiko Asakura, Kentaro Murakami, Satoshi Sasaki   +2 more
exaly   +2 more sources

Relative Validity of Interviewer-Administered 24-Hour Recalls Collected By Telephone and In-person Compared With Weighed Food Records Among Rural Sri Lankan Adults [PDF]

Current Developments in Nutrition
Background: Quantitative dietary assessment is hindered by cost, time, and logistical burdens. Collecting 24-hour recall (24HR) dietary data by phone may be particularly advantageous in rural areas.
Caroline A Joyce, Christine P Stewart, Charles D Arnold, Hasara Sitisekara, Bess L Caswell, Sonja Y Hess, Amy Margolies, Thilanka Ranatunga, Thushanthi Perera, Deanna K Olney, Renuka Silva, Aulo Gelli   +11 more
doaj   +2 more sources