The review assessed randomized controlled trials (RCTs) on dried plums (prunes) and their impact on gastrointestinal function. KCL Pure+1
Out of multiple sources, four RCTs matched the criteria: one among individuals with constipation, and three among non‑constipated subjects. PubMed+1
For constipation, daily intake of 100 g prunes for three weeks increased stool frequency (from 2.8 to 3.5 complete spontaneous bowel movements per week) and improved stool consistency compared with 22 g/day of psyllium. KCL Pure+1
In non‑constipated people, prune intake sometimes softened stool consistency, and in one trial significantly increased stool weight over 72 hours compared with control. KCL Pure+1
Across the trials no significant adverse gastrointestinal symptoms were observed when comparing prunes with control or other interventions. Nutrition Evidence Database+1
Because the studies differed in populations and methods, and some had unclear risk of bias, meta‑analysis was not possible — so while results are promising, they remain limited. KCL Pure+1