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.
Hydration. Eating bad food can lead to food poisoning, which can cause bad stomach aches, diarrhea, and vomiting. After losing water and electrolytes such as potassium and sodium from vomiting and diarrhea, you'll feel weak.uring these circumstances, it's safe to avoid foods that are more difficult to digest, such as meat and fried foods. Eating heavy foods may cause you to release it. Eating is still necessary, so it will be best to eat after you've stop vomiting. Eat lighter foods such as jello or crackers.