# Association between defecation status and the habit of eating vinegar-based dishes in community-dwelling Japanese individuals: a cross-sectional study

## TL;DR

A study in Japan found that eating vinegar-based dishes is linked to more frequent bowel movements.

## Contribution

This study identifies a novel association between vinegar-based dish consumption and improved defecation frequency.

## Key findings

- Individuals eating 'sour main dishes' had a 38% higher odds of better defecation frequency.
- Consuming 'salad with sour dressing' was linked to a 41% higher odds of improved defecation.
- No significant effect on defecation time or straining was observed.

## Abstract

Vinegar intake reportedly has an antihypertensive effect and reduces visceral fat. Nonetheless, studies on the form of vinegar intake and its effect on defecation are scarce. This cross-sectional study aimed to investigate the association between the frequency of vinegar-based dish intake and defecation status using data from the Tarumizu cohort study. The participants (n = 1024, 634 women) responded to a health check survey in 2019 using a brief-type self-administered diet history questionnaire. The association between the frequency of vinegar-based dish intake and defecation status was examined using a multivariate logistic regression analysis. Considering confounding factors influencing the defecation status such as sex, age, dietary fiber intake, and medication history, individuals with a habit of eating vinegar-based dishes, such as “sour main dishes” (odds ratio [OR]: 1.38; p = 0.039), “sunomono” (OR: 1.49; p = 0.035), and “salad with sour dressing” (OR: 1.41; p = 0.049), had a significantly higher defecation frequency. No significant association was observed between the habit of eating vinegar-based dishes and the time required for defecation or straining during defecation. Our study showed that the habit of eating vinegar-based dishes was positively associated with defecation status. Our findings may suggest a novel approach for defecation improvement in people with defecation problems.