Lowering Salt in Your Diet. 1  Salt is regulated by FDA as a âgenerally recognized as safeâ (GRAS) ingredient. A GRAS substance is one that has a long history of safe, common use in foods, or that is determined to be safe, for the intended use, based on proven science. These substances need not be approved by FDA prior to being used.
Gastroenterologists are internists who specialize in diseases of the intestines. Gastroenterologists perform most colonoscopies. Other doctors who perform colonoscopies: Colon and rectal surgeons are general surgeons with extra training in the surgical treatment of intestinal and rectal conditions. General surgeons specialize in the surgical treatment of a variety of diseases, disorders and conditions. Some general surgeons focus their practice on the intestinal tract.
Colonoscopy is an outpatient procedure in which your large bowel (colon and rectum) is examined. Your doctor may perform the procedure to diagnose and treat, when possible, certain diseases of the lower gastrointestinal (GI) tract, which includes the rectum and colon.efore a colonoscopy, let your doctor know about any special medical conditions you have, including: 1  Pregnancy. 2  Lung conditions. 3  Heart conditions. 4  Allergies to any medications. 5  If you have diabetes or take medications that may affect blood clotting.