The kidneys maintain the blood creatinine in a normal range. Creatinine has been found to be a fairly reliable indicator of kidney function. Elevated creatinine level signifies impaired kidney function or kidney disease.
If you feel nauseated, here are some tips: 1  Avoid foods that are hard to digest. 2  If the smell of hot food makes you feel ill, try eating cool or cold meals. 3  Eat six small meals each day instead of three large ones. 4  Do not lay down after eating. 5  Rest with your head higher than your feet.
1 So if youâre dealing with either diarrhea or constipation, youâll want to avoid fried foods for a while. 2  The conventional wisdom, says Krevsky, is that when you have indigestion, you should avoid fried foods because they tend to slow down the emptying of the stomach. 1  Processed Foods If youâre constipated, avoid processed foods because they lack fiber, which helps regulate bowel movements, Krevsky says.