ArticleJournal of human nutrition and dietetics : the official journal of the British Dietetic Association2021
The accuracy of portion size estimation using food images and textual descriptions of portion sizes: an evaluation study.
Article in Journal of human nutrition and dietetics : the official journal of the British Dietetic Association, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 35 citations in OpenAlex.
- The effect of healthier menu item price reductions in the out-of-home food sector on energy purchased and consumed: a restaurant-based pilot experiment.BMC public health · 2025Trial
- An automated image-based dietary assessment application: a pilot study.Journal of nutritional science · 2025Trial
- Development and Validation of a Photographic Food Atlas for Portion Size Estimation and Educational Use in Türkiye.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2026Article
- A Confidence-Aware Hybrid Vision-Language Framework for Food Recognition and Nutritional Monitoring.Nutrients · 2026Article
- Observational
- Development and validation of a photographic food atlas for portion size estimation in Singapore.Frontiers in nutrition · 2026Article
- Integration of modern technologies to advance dietary assessment.Nature food · 2026Review
- Digital Mapping of Central Asian Foods: Towards a Standardized Visual Atlas for Nutritional Research.Nutrients · 2025Article
- Integrating Technology and Culture: Smartphone Validation of a Food Frequency Questionnaire for Nutrient Intake Estimates in the Adult Population of Trinidad and Tobago.Current developments in nutrition · 2025Article
- Navigating next-gen nutrition care using artificial intelligence-assisted dietary assessment tools-a scoping review of potential applications.Frontiers in nutrition · 2025Review
- Article
- Effects of a Nutrition Education Programme in Stage IV Cardiac Rehabilitation Patients: A 3-Arm Randomised Controlled Trial.Life (Basel, Switzerland) · 2023Article
- Managing food waste in the inpatient population.BMJ open quality · 2023Article
- Comparing Self-Reported Dietary Intake to Provided Diet during a Randomized Controlled Feeding Intervention: A Pilot Study.Dietetics (Basel, Switzerland) · 2023Article
- Diet Quality Outcomes of a Cooperative Extension Diabetes Prevention Program.Journal of nutrition education and behavior · 2023Article
- Design Issues in Personalized Nutrition Advice Systems.Journal of medical Internet research · 2023Article
- Serving size estimates using digital food photographs among Japanese adults: a critical analysis.Journal of nutritional science · 2023Article
- Response to Ahmed GJournal of nutritional science · 2023Article
- Accuracy of estimates of serving size using digitally displayed food photographs among Japanese adults.Journal of nutritional science · 2022Article
- Development and validation of the FiberScreen: A short questionnaire to screen fibre intake in adults.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2021Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundInaccurate self-report of portion sizes is a major cause of measurement error in dietary assessment. To reduce this error, different portion size estimation aids (PSEAs) have been developed, including food images (image based, IB-PSE) and textual descriptions of portion sizes (text-based, TB-PSE). We assessed the accuracy of portion size estimation by IB-PSE and TB-PSE.
methodsTrue intake of one lunch was ascertained in forty participants. Self-reported portion sizes were assessed after 2 and 24 hours by means of TB-PSE and IB-PSE, in random order. Wilcoxon's tests were used to compare mean true intakes to reported intakes. Moreover, proportions of reported portion sizes within 10% and 25% of true intake were assessed. An adapted Bland-Altman approach was used to assess agreement between true and reported portion sizes. Analyses were conducted for all foods and drinks combined and for predetermined food types.
resultsNo significant differences were observed between reported portion sizes at 2 and 24 hours after lunch. Combining median relative errors of all foods items resulted in an overall 0% error rate for TB-PSE and 6% error rate for IB-PSE. Comparing reported portion sizes within 10% (31% vs. 13%) and 25% (50% vs. 35%) of the true intake showed a better performance for TB-PSE compared to IP-PSE, respectively. Bland-Altman plots indicated a higher agreement between reported and true intake for TB-PSE compared to IB-PSE.
conclusionsAlthough the use of TB-PSE still results in measurement error, our results suggest a more accurate dietary intake assessment with TB-PSE than IB-PSE.
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