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.
Bland foods can help settle your toddler's stomach. Plain baked potatoes and white rice are safe foods, which are bland enough that they won't irritate her tummy. Applesauce, gelatin and toast are also safe for your child to eat while she is recovering from an upset stomach.