Drinking natural mineral water rich in magnesium sulphate and sodium sulphate daily improves bowel movement frequency and stool consistency in people with functional constipation.
This placebo-controlled, double-blind, randomized trial involved 106 healthy individuals with functional constipation. They were randomly assigned to consume either 300 or 500 ml of a natural mineral water rich in magnesium sulphate and sodium sulphate (Donat Mg) or a placebo water daily for six weeks. The 300-ml groups were discontinued following an interim analysis. Participants recorded their bowel movements, stool consistency, gastrointestinal symptoms, and general well-being in a diary. The primary outcome was the change in the number of complete spontaneous bowel movements per week.
In the 500-ml group, consisting of 75 subjects, there was a tendency for a higher increase in complete spontaneous bowel movements per week in the active group compared to the placebo after six weeks. The mean number of spontaneous bowel movements significantly increased over the study period, with notable differences between the study arms throughout the study. Stool consistency and subjectively perceived symptoms of constipation improved significantly with the mineral water compared to placebo. Overall, the daily consumption of this specific mineral water led to improvements in bowel movement frequency and stool consistency, enhancing the health-related quality of life for participants with functional constipation.
