An Exiciting New Study Suggests Spirulina for Irritable Bowel Syndrome A promising new study provides evidence that spirulina can improve symptoms and quality of life in people with irritable bowel syndrome. Irritable bowel syndrome (IBS) affects 5-10% of all people. It affects women more than men. Because of the pain, and because 38% of people with IBS experience depression and 40% experience anxiety, IBS can seriously affect quality of life. Recent research is expanding our knowledge of IBS. It appears that gut