Side effects
According to the data reported in Table 9, no major negative effects were reported during the trial in the celery group compared to the placebo group (P>0.05). Celery also had some positive side effects, reported by the patients during celery treatment, such as improved sleep quality, a sense of relaxation and freshness during the day, better breathing, and less dizziness, which were significant in comparison with the placebo group (P<0.05). Moreover, no patient was withdrawn from the clinical trial due to adverse events.