12 Jun 2018 --- A multi-strain probiotic supplement has resulted in strong symptom reductions in those suffering from Irritable Bowel Syndrome – diarrhea (IBS-D), a study conducted at the University of Bangabandhu Sheikh Medical University in Bangladesh has found. The 14 strains of “gut-friendly” bacteria in the supplement – Bio-Kult – were also found to reduce anxiety, tapping into the growing space of gut-brain axis products.