Validation of salt intake measurements: comparisons of a food record checklist and spot-urine collection to 24-h urine collection.

Objective: Monitoring population salt intake is operationally and economically challenging. We explored whether a questionnaire assessment and a prediction of Na intake from spot-urine could replace or complement the recommended measurement of Na in 24-h urine (24-h U).

Design: Compare the agreement of a Na-specific food record checklist (FRCL) and a late-afternoon spot-urine measurement (PM-spot) with 24-h U measurement in estimating Na intake at group level.

Study design and baseline characteristics of a combined educational and environmental intervention trial to lower sodium intake in Swiss employees.

Background: Blood pressure is a primary cardiovascular disease risk factor. Population-wide governmental strategies aim to reduce lifestyle and dietary risk factors for hypertension, one of which is an unbalanced diet with high sodium and low potassium intakes. Nutrition interventions in the workplace are considered a promising approach in encouraging health-promoting behaviors.

A short food literacy questionnaire (SFLQ) for adults: Findings from a Swiss validation study.

The short food literacy questionnaire (SFLQ) was developed to measure a broad range of skills including functional, interactive, and critical elements of FL. This study evaluated SFLQ measurement properties. We used a workplace intervention trial to reduce salt intake in Switzerland to explore the underlying structure of the questionnaire with 350 respondents and identify the ideal number of SFLQ items to capture the different elements of FL.