Identifying the Best Tools for Recording Diet in Free-living UK Adults (SODIAT-2 Study)

Summary

The aim of the SODIAT-2 study is to evaluate the effectiveness of dietary intake assessment tools in a real-world setting. These tools include wearable cameras, spot urine samples, capillary blood samples, and a web-based food frequency questionnaire (FFQ). The main questions it aims to answer are:

Is the accuracy of dietary assessment improved in free-living environments when a combination of subjective and objective assessments tools are used?

Secondary research questions are:

Can wearable cameras accurately monitor the daily dietary intake of free-living individuals? Does a combination of capillary blood samples and spot urine samples provide a robust assessment of the nutrient status and habitual dietary exposure in a free-living setting? Can data-driven integration of multiple emerging technologies create a dietary assessment tool that is low burden, accurate and scalable in free-living populations? Can a condensed FFQ estimate diet quality as effectively as a detailed FFQ?

Participants will:

Use the dietary assessment tools (wearable camera, spot urine, capillary blood, and eNutri FFQ web-app) as instructed over a 5-week period from their home and/or working space.

Take part in two monitoring weeks (week 1 and week 5) where they will record their usual dietary intake over 3 days.

Consume an identical 3-day study meal plan during the test (calibration) diet week 3, whilst repeating the monitoring week measurements.

This study aims to recruit 133 adults living in Great Britain (GB) to better understand how these tools perform outside of a clinical environment.

Conditions

• Dietary Intake Assessment
• Food Intake Measurement

Interventions

OTHER

Measuring dietary intake

During 5-week study, participants will monitor their usual dietary intake during two 3-day periods (on weeks 1 and 5). During week 3 (calibration week) participants will consume a test diet. Wearable camera technology, self-collected blood and urine samples, and online FFQ (eNutri) will be used to monitor food intake during study weeks. Study tools as well as foods/drinks for the test diet will be delivered to each participant and they will be asked to comply with the study procedures in their home or working environment. Participants will post study samples and the study equipment/logs at designated times using pre-paid envelopes or a courier collection, respectively.

Sponsors & Collaborators

• Aberystwyth University

  collaborator OTHER

• University of Cambridge

  collaborator OTHER

• Imperial College London

  collaborator OTHER

• University of Reading

  lead OTHER

Principal Investigators

• Manfred Beckmann, Dr · Department of Life Sciences, Aberystwyth University

• Julie A Lovegrove, Professor · Hugh Sinclair Unit of Human Nutrition Department of Food and Nutritional Sciences, University of Reading

• Gary Frost, Professor · Nutrition Research Section, Hammersmith Hospital Campus, Imperial College

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2025-08-25

Primary Completion

2026-07-31

Completion

2026-07-31

Countries

• United Kingdom

Study Locations