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 not to eat. Continue avoiding any foods that might irritate your already delicate stomach. These include caffeine, citrus, spicy foods, dairy products, fatty meats, and highly seasoned foods. Also avoid eating vegetables such as broccoli, beans, and cabbage, as these produce gas when digested.hat to eat. Start off with bland, easy to digest foods such as soda crackers, rice, and toast. Once these are easily assimilated by the body, try incorporating vegetables (carrots, peas) and fruits (bananas, melon), lean meats such as chicken breast, and more carbohydrates such as plain spaghetti.