BRAT diet for years, the BRAT diet consists of foods that are bland and gentle on the stomach.If you are feeling nauseous, queasy, or are vomiting, it may be hard to hold down food. Some foods may even make your symptoms worse. Additionally, if you are experiencing diarrhea, this diet helps solidify stoolsBRAT: Is an acronym for Bananas, Rice, Apples, and Toast.The diet does not need to consist of only these foods, and depending on the severity of your nausea, vomiting, or diarrhea, you may need to introduce solids back into your diet over the course of a few day