According to the study, two tablespoons of vinegar reduced SBP by -3.25 mmHg and DBP by -3.33 mmHg.
However, the authors admitted that “caution” is needed. They wrote: “Due to the short duration of intervention in included studies (7–12 weeks), there is a limitation for understanding the long-term effects.
“Further research with a large population and a long period of intervention is needed to evaluate the safety and efficacy of vinegar on improving blood pressure.
“Given the limitations, the findings of the present meta-analysis should be interpreted with caution.”