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.
What foods are suitable for an upset stomach? Suitable foods are those that are not too acidic or too feculent. The acidity of the stomach is a major disorder that causes stomach pain, while many of the problems about cramps and spasms are caused by excessive flatulence in the stomach or intestine. Flatulence pressures abdominal muscle and produces pain.