The BRAT diet is often prescribed for adults and children with gastroenteritis, an infection of the intestines commonly known as the stomach flu. However, the BRAT diet has been criticized for being overly restrictive.
Studies mentioned:
STUDY 1: https://www.ncbi.nlm.nih.gov/pubmed/16267717
STUDY 2: https://www.ncbi.nlm.nih.gov/pubmed/9155405
STUDY 3: https://www.ncbi.nlm.nih.gov/pubmed/11522739
STUDY 4: https://www.ncbi.nlm.nih.gov/pubmed/9669718
STUDY 5: http://journals.lww.com/jpgn/Fulltext/2008/05000/European_Society_for_Paediatric_Gastroenterology,.26.aspx
STUDY 6: