What is colon cancer?
-- Also referred to as colorectal cancer
-- Occurs in the colon (or large intestine) or in the rectum
-- Often develops slowly
-- Second-leading cause of cancer mortalities in men and women

Before cancer develops, an abnormal growth called a polyp may develop on the inner lining of the large intestine or rectum. While polyps are common and typically don’t cause symptoms, some are dangerous and can turn into cancer over time.

What are the symptoms of colon cancer?
Colon cancer often has no obvious signs or symptoms in its early stages. By the time colon cancer symptoms show themselves, in many cases the cancer has advanced to a later stage.
If you experience any of the following colon cancer symptoms, see your doctor immediately:
-- A change in bowel habits, such as diarrhea or constipation that lasts for more than a few days
-- A feeling that you need to have a bowel movement that is not relieved by having one
-- Blood in your stool
-- Cramping or stomach pain
-- Weakness and fatigue
-- Unexpected weight loss

Colon Cancer supplements, herbs and vitamins
People who consume relatively high levels of calcium and take vitamin D supplements seem to be protected to some degree against colon cancer. Colon cancer is one of the most commonly diagnosed cancers worldwide, and dietary factors are considered to be important in its risk. Consider the following supplements:

Curcumin is an extract from turmeric that may be of benefit. This supplement is not absorbed too well into the bloodstream so most of it stays in the gut and it can have its anti-inflammatory and anti-tumor activity in the GI system. Perhaps curcumin may be of benefit in those who have Familial Adenosis Polyposis, especially when combined with quercetin.
Fish oil supplements may be of benefit. People who eat plenty of fish oil and other omega-3 fatty acids could cut their risk of colon cancer. American Journal of Epidemiology, 2010.

Colon cancer patients who take in higher amounts of omega-3 fatty acids, mainly from oily fish, may have better odds of survival; Gut, news release, July 19, 2016.

Ginger appears to lower some indicators of inflammation in the colon.

Folic Acid and B vitamins may be helpful

Vitamin D has the power to protect some people from getting colorectal cancer since it boosts the immune system's defenses against tumor cells.

Calcium -- A daily calcium supplement protects against colon polyps, particularly the advanced type that go on to become cancer. Vitamin D supplementation is also a good idea.

Calcium and α-tocopherol suppress cured-meat promotion of chemically induced colon carcinogenesis in rats and reduce associated biomarkers in human volunteers. Am J Clin Nutr. November 2013.

Citrus bioflavonoids may be helpful