LOS ANGELES, Feb. 28 (UPI) -- Colorectal cancer remains the second-leading cause of cancer deaths in the United States, but doesn't have to be a killer, a California doctor says.

"Improvements in prevention, early detection and treatment have greatly reduced the death toll from this disease," Dr. J. Randolph Hecht of the Geffen School of Medicine at University of California, Los Angeles said in a statement.

Hecht said everyone should get regular colorectal cancer screenings beginning at age 50 if a person is at normal risk. However, if a person is at higher risk -- due to a personal or family history of colorectal cancer, or other cancers or inflammatory bowel disease -- he or she should talk to a doctor about screenings before age 50.

To prevent colorectal cancer Hecht advises to:

-- Eat a low-fat diet that includes between 25 and 30 grams of fiber each day from fruits, vegetables, whole grain breads and cereals, nuts and beans.

-- Drink alcohol in moderation and quit smoking.

-- Exercise for at least 20 minutes three to four days a week and maintain a healthy weight.

-- Report any persistent symptoms such as blood in the stool, a change in bowel habits, weight loss, narrower-than-usual stools, abdominal pains or other gastrointestinal complaints to a doctor.