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Dietary Assessment and Data Collection Services

Pubrica collects and codes dietary intake data for nutrition, epidemiological and clinical research. Trained interviewers collect 24-hour recalls, food frequency questionnaires and food records using standard methods, and the data are coded to an appropriate food composition database so that nutrient intakes can be estimated consistently.

  • Method chosen for the question, whether usual intake, recent intake or a specific nutrient
  • Multiple-pass recalls used to reduce omissions in 24-hour recall interviews
  • Portion size aids such as photographs or household measures, appropriate to the population
  • Coding to a stated food composition database, with local foods and recipes documented
  • Quality checks for implausible intakes and interviewer differences
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What you receive

Coded dietary dataset with nutrient intakesIncluded

Food composition database and version usedIncluded

Interview protocols and portion size aidsIncluded

Quality control reportIncluded

Data-collection methods summaryIncluded

Service Scope

What Our Dietary Data Collection Service Covers

Each project is scoped individually. The components below are combined according to your study and its requirements.

24-hour dietary recalls Interviewer-administered recalls using a multiple-pass approach, repeated where usual intake is needed.
Food frequency questionnaires Selection or adaptation of a validated questionnaire for the population.
Food records Weighed or estimated records with participant training and review.
Nutrient coding Foods and recipes coded to a food composition database and nutrient intakes calculated.
Dietary indices Diet quality scores and food group intakes derived to published definitions.
Data quality review Energy intake plausibility checks and review of outliers.

Applications

Studies That Use Dietary Data

Nutrition surveysPopulation intake and adequacy.
Diet–disease cohortsUsual intake and disease outcomes.
Dietary interventionsAdherence and change in intake.
Maternal and child nutritionIntake in pregnancy and early childhood.
Validation studiesComparison of questionnaires with reference methods.

Process

How the Project Works

Methods, deliverables and fees are confirmed in writing before work begins.

01 Protocol reviewWe review the protocol, ethics approval and sample size, and identify the measures and the data standards required.
02 Tools and trainingCase report forms, measurement procedures and data-entry checks are prepared, and field staff are trained and assessed.
03 Collection and monitoringData are collected to protocol, with quality checks, query resolution and regular progress reports.
04 Cleaning and documentationThe dataset is cleaned and locked, with a data dictionary and a record of every correction.
05 HandoverYou receive the dataset, the documentation and a data-collection report suitable for the methods section.

FAQs

Frequently Asked Questions

If your question is not answered here, ask an expert.

It depends on whether you need usual or recent intake, the nutrients of interest and the population. We recommend a method and explain its limitations.

Yes. Food lists and portion sizes can be adapted, with the changes documented and, where needed, a validation step.

We use the database most appropriate to the country and study, and state the database and version in the report.

We apply plausibility checks to energy intake and report how implausible values were identified and handled.

Pubrica Academy

Further Reading in Pubrica Academy

AcademyCommonly Used Medical Data Collection Approaches in Clinical Research AcademyImportance of Data Collection in Healthcare AcademySurvey Questionnaires in Research CategoryAll articles in Research Data, Analytics & AIPubrica Academy articles on statistics, data collection, analytics and AI.

Request a Quote for Dietary Data Collection

Share your protocol or study outline. We confirm the setting, sample, measures, timeline and fee before fieldwork is planned.

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Regulations

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What do you need?

Material you send is held under signed confidentiality, with access limited to the assigned team and encrypted transfer. It is not used to train anything and is not passed to third-party tools. Ask for the agreement before you send anything you would rather cover first.