A colonoscopy (koh-luh-NAH-skuh-pee) allows a doctor to look inside the entire large intestine. The procedure enables the physician to see things such as inflamed tissue, abnoâ¦rmal growths, and ulcers. It is most often used to look for early signs of cancer in the colon and rectum.
Fatty fish, nuts and other foods with omega-3 fatty acids boost HDL cholesterol levels, as does cooking with olive, canola or peanut oil. All of those oils contain monounsaturated and polyunsaturated...
1 Omega-3 fatty acids found in fatty fish, flax seed, flax seed oil and fish oil supplements can help lower LDL and raise HDL. Fatty fish include salmon, flounder, haddock, catfish, sardines, bluefish, herring, albacore tuna and anchovies.  Eating substances called sterols and stanols may help.