Creatinine is transported through the bloodstream to the kidneys. The kidneys filter out most of the creatinine and dispose of it in the urine. Because the muscle mass in the body is relatively constant from day to day, the creatinine production normally remains essentially unchanged on a daily basis.
When you have an upset stomach, avoid acidic foods, he says. 1  Fatty Foods Fatty foods stimulate contractions in the digestive tract, which, surprisingly, can either slow down the emptying of the stomach and worsen constipation or speed up movement and worsen or lead to diarrhea.
The most well known grouping of foods to eat to stop diarrhea is the BRAT diet. These four foods can help to settle your stomach and quickly put an end to your digestive woes. Bananas, rice, applesauce, and toast are mild enough to be easy on your stomach.