Adding probiotics to the diets of patients with schizophrenia may help treat yeast infections and bowel problems (common conditions in schizophrenia), and in some cases, reduce positive psychiatric symptoms, such as delusions, hallucinations, and hostility, according to a small pilot study at Johns Hopkins Medicine and Sheppard Pratt Health System. Perhaps most notably, patients who saw the greatest improvements in psychiatric symptoms had no yeast infections to begin with. The researchers hypothesize that probiotics may