Comparison of the short form of a Swiss Food Frequency Questionnaire with its long form and analysis of the application of an online, image-based nutrition record

Peer reviewed / Manuscript (Review) submitted: 04.12.2023; revised version accepted 14.03.2024

Introduction

There are various ways to reduce the workload and effort involved in nutrition logging: existing Food Frequency Questionnaires (FFQs) can be shortened or adapted for use in web-based formats and innovative (e.g., image-based) logging methods can also be developed and used [1–4]. Devices with a digital camera are now ubiquitous, so these devices are the most commonly used tools for recording food intake when using an image-based nutrition record. Before eating, the person takes photos of the food and/or drink they are about to eat/drink [4, 5]. The photos can be used to identify the type of food the person has eaten and, if necessary, the portion sizes [4].

Study question

An abridged FFQ (Short FFQ, SFFQ) was compared with the corresponding long-form (LFFQ) of an online FFQ that had already been developed and validated [6]. Additionally, an image-based nutrition record (ibNR) was developed and its suitability for use in analysis was tested. The ibNR was used to determine whether and how the FFQs could be updated. ...

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