How can I prevent GI cancer?

Healthy lifestyle. Maintain a healthy lifestyle: - balanced diet - achieve and maintain an ideal body weight - don't use tobacco - consume alcohol in moderation - know your family history watch for symptoms: - blood in your stool - change in stool habits - unusual abdominal pains keep up on screening tests: - colonoscopy at age 50.
Family history. All the answers above are correct. Family history may suggest genetic predisposition and should be considered.