25 Jan 2018 --- Vitamin D supplements could help to ease the symptoms of Irritable Bowel Syndrome (IBS), a new study from the University of Sheffield has found. Scientists from the University’s Department of Oncology and Metabolism reviewed and integrated all available research on vitamin D and IBS – a condition which affects two in ten people in the UK. The study showed a high prevalence of vitamin D deficiency in IBS patients, regardless of their ethnicity.