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Colon cancer occurs almost always from a polyp. A colon polyp is an overgrowth of the lining of the colon. Most polyps are benign and will continue too. Only in a small percentage polyps come "troubled cells" for. When malignant cells grow in the wall of the colon, it is referred to as colon cancer.

The two most common hereditary forms of colon cancer are familial adenomatous Polyposis (FAP) and the Lynch syndrome (previously Hereditary Non-Polyposis Colorectal carcinoma (HNPCC) called). FAP and the Lynch syndrome are responsible for about 5 to 10% of all cases of colon cancer. Characteristic of these hereditary forms of colon cancer is that they are usually at a young age (for the 50th year of life) originated. Hereditary predisposition does not mean someone will certainly get colon cancer. Carriers of the Lynch syndrome have an increased risk of inherited by one of their parents (25-70%).

Colon cancer (not hereditary form) is mainly found in people of 60 years of age and older. But colon cancer can also occur on (much) younger age.

The Minister of health, welfare and Sport has decided to starting from 2014 a rural population screening for colon cancer to enter. The introduction of the population screening means that from 2014 all Dutch people between 55 and 75 year get a call every two years to surrender to defecate. This is checked for traces of blood. Traces of blood in the stool may indicate colon cancer but doesn't have to be that way.

At an early detection of colon cancer survives 90% of patients the first 5 years. But when colon cancer a chance to sow out to other organs, then only 10% survive the first five years.

The growth of colon cancer usually goes very slowly. It may take up to ten years a healthy cell eventually a cancer cell.

There is no single cause for the emergence of non-hereditary colon cancer.

Scientific studies on colon cancer:
The review articles (meta-analyses) of randomized, placebo-controlled double-blind human studies (Rcts) answer the following question:
"Is swallowing food supplements make sense?". Yes at a positive conclusion and no in the case of a negative conclusion.

The review articles (meta-analyses) of cohort studies or case-control studies answer the following question:
"Should I change my diet?".

  1. Zinc through feeding lowers colon cancer
  2. 5 mg of zinc per day through feeding lowers colon cancer
  3. 200-270 mg of magnesium per day lowers colon cancer
  4. Fruits and vegetables reduce the risk of colon cancer
  5. Fruits and vegetables offer protection against colon cancer
  6. Cruciferous vegetables lower colon cancer
  7. A high folate intake lowers colon cancer
  8. heme iron 1 mg per day through feeding increases colon cancer
  9. Many heme-iron increases colon cancer
  10. A lot of folic acid, vitamin D, B6 and B2 through feeding lowers colon cancer
  11. A high vitamin B6-blood value lowers colon cancer
  12. Metabolic syndrome raises colon cancer
  13. Eating a lot of vitamin C and beta-carteen lowers colon adenoma
  14. Eating fish probably lowers colorectal cancer
  15. Witvlees, fish and poultry not lower colon adenoma
  16. Fish lowers stomach cancer
  17. Eating a lot of legumes lowers colorectal adenoma
  18. Dairy products and milk provide protection against colorectal cancer
  19. Calcium intake to above 1000 mg per day lowers colon cancer