The BRAT diet is a kind of diet prescribed to patients having gastrointestinal troubles, such as gastroenteritis, nausea, dyspepsia or diarrhea. The characteristics of the BRAT diet include the easy digestion foods, and it does not contain oil, which makes it stomach-friendly. It is also low in fiber as contrary to a high fiber foods that make the stomach work hard in digesting, which may cause gas build up, thus worsening the condition of the stomach. Banana, rice, applesauce and toast is the acronym of BRAT. Other BRAT foods include yogurt and tea.
Doctors often recommend the BRAT diet for patients with diarrhea; it is to be taken along with lots of fluids to prevent dehydration. A normal diet that is high in fiber, calories, and protein should always be avoided if suffering from diarrhea, along with fats and sugar rich foods. The BRAT diet works well for the stomach if taken as part of a normal diet.
Our stomach and our body for that matter has a built in natural immune system, and diarrhea is part of the immune system whereby dispelling toxins out from the body by means of a loose bowel movement. An upset stomach may have incurred toxins from unwanted foods, or maybe too much oil and fat intake causes the diarrhea. The logic of the BRAT diet is to return the intake of our stomach to its "compatible" foods.