Background: Bloating, is a common complication in patients with stroke; that increased intracranial pressure due to cerebral hypoxia in these patients. Most drugs have adverse effects  to relieve flatulence.So this study aimed to investigate the effect of synbiotic supplement on stroke patients; was performed.

Methods: The study, on 65 stroke patients; was done. They were randomly divided into two groups: control (n = 32) and intervention  (n = 33) and the size of their abdominal circumference were measured before the study. The intervention group, in addition to routine treatment, for a week, every 12 hours, recived fermented prbiotic supplement Zhari Takhmir and the control group was given only a laxative( MOM = 15cc) prescribed by a doctor. In the end, abdominal circumference in all patients were evaluated again. Data using analysis of covariance model, were analyzed .

Results: After a week, abdominal circumference measurements in two groups showed that; in the intervention group on average waist size of 6.1 inches had reduced compared to baseline( p=0.028). But the changes were not significant in the control group.

Conclusion: The study showed that a probiotic supplementation reduces abdominal circumference and  distention in patients with stroke; Therefore, probiotics can be used as a non-drug therapy in the treatment of these patients.