A systematic review and meta-analysis: Vinegar consumption on glycaemic control in adults with type 2 diabetes mellitus.

Existing reviews are limited to narrative synthesis, lacking critical appraisal, heterogenous outcomes, nor any report of fasting blood glucose and HbA1c. This meta-analysis review extends the evidence on the beneficial effects of vinegar on glycaemic control as measured by HbA1c and fasting blood glucose. Clinicians could incorporate vinegar consumption as part of their dietary advice for patients with diabetes.