High adherence to a food guide may be associated with lower 24-hour urinary sodium excretion and sodium-to-potassium ratio, and higher potassium excretion.

Background & Aims: Salt reduction remains an important issue in population-level studies of diet. One unresolved issue is whether adherence to a food guide which does not assess dietary salt can lead to a reduction in salt intake.

Methods: This study aimed to investigate the association between adherence to a food guide calculated by weighed food records (WFRs) or a Food Frequency Questionnaire (FFQ), and urinary sodium and potassium excretion and sodium-to-potassium ratio.