What is this study trying to find out about dietary intake assessment?

This study aims to evaluate how well different tools like wearable cameras, urine and blood samples, and online questionnaires can accurately measure diet in everyday life. It explores whether combining these methods improves accuracy and creates a low-burden, scalable way to monitor diet quality. The University of Reading is leading this research to improve how dietary intake is assessed outside clinical settings.

Who may be eligible for this dietary intake assessment clinical trial?

Adults aged 18 years or older who live in Great Britain and can understand English may be eligible. Participants should be willing to use study tools like wearable cameras and self-collect samples, and able to consume a supplied test diet. People who are pregnant, underweight, or have certain health conditions are excluded. Please review eligibility criteria for more details.

Is there any cost to participate in this dietary intake assessment clinical trial?

Study-related care, including the study procedures and all trial visits, is provided at no cost. Personal expenses such as travel or time commitments may vary and are not guaranteed to be covered. Participants should plan accordingly for any additional costs they might incur.

Actively Recruiting

Age: 18Years +

All Genders

Healthy Volunteers

ID06879574

Investigating a Data-driven Standardized and Objective Dietary Intake Assessment Tool in Free-living Individuals - SODIAT-2 Study

Led by University of Reading · Updated on 2025-11-28

133

Participants Needed

Research Sites

N/A

Total Duration

AI-Summary

What this Trial Is About

Researchers are evaluating the accuracy and usefulness of various dietary intake assessment tools in adults living freely in Great Britain. This observational study aims to see if combining subjective methods like food frequency questionnaires FFQ with objective tools such as wearable cameras, spot urine samples, and capillary blood samples improves dietary assessment accuracy outside clinical settings. The study also explores whether these technologies can provide a low-burden and scalable way to monitor diet quality and nutrient exposure in everyday life. Participants will use the study tools over a 5-week period. During weeks 1 and 5, they will record their usual diet for three days using wearable cameras, self-collected blood and urine samples, and an online FFQ. In week 3, they will consume a controlled 3-day test diet while continuing to use the same dietary assessment tools. Wearable cameras will capture images every 7 seconds during monitoring days, blood samples will be self-collected while fasting on specified days, and urine samples will be collected twice daily over four days each study week. The test diet will be delivered by online supermarkets, and participants can choose serving sizes but must not consume foods outside the test menu. Participants will complete questionnaires and usability surveys online and mail their biological samples and study equipment back to the research team. Researchers will monitor adherence and provide reminders during recording days. The main outcomes measured include dietary intake recorded by cameras, urine and blood biomarkers, and FFQ responses during all study weeks. The study lasts about five weeks with activities conducted remotely from participants homes or workplaces. The goal is to understand how these tools perform in real-life conditions to improve dietary assessment methods.

CONDITIONS

Brief Title

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

Who Can Participate

Age: 18Years +

All Genders

Healthy Volunteers

Eligibility Criteria

You may qualify if you...

18 years and older
Lives in Great Britain (England, Scotland and Wales)
Able to read and understand instructions written in English and are fluent in English

You will not qualify if you...

Diagnosed or self-reported as underweight with a body mass index (BMI) less than 18.5 kg/m2
Unwilling or unable to collect urine and blood samples, use the wearable camera as instructed, or spend 20-30 minutes online recording dietary intake multiple times
Unwilling or unable to have a video call with cameras turned on
Unwilling or unable to post samples on specific days and receive/send a large parcel at study start/end
Unwilling or unable to receive a grocery delivery from Tesco or Sainsbury's or lack refrigeration/freezer space
Unwilling or unable to eat any items on the calibration menu due to allergies, dislikes, medical conditions, or dietary restrictions
Unwilling or unable to avoid dietary and herbal supplements for at least 1 week before and during the study
Pregnant, may be pregnant, or breastfeeding
Experiencing, recovering from, or at high risk of an eating disorder
Have health conditions or treatments affecting metabolism, appetite, or ability to eat the test diet
Taking certain medications including androgens, blood thinners, phenytoin, erythromycin, thyroid hormones, anti-inflammatories, steroids, or antibiotics without a 4-week washout
Use illicit or recreational drugs
Diagnosed with dementia or memory-related conditions
Lack assistance at home or work to use study tools if needed
Participated in another intervention study within 4 weeks prior to this study

Research Team

Julie A Lovegrove, Professor

Michelle Weech, Dr

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