There are many normal bacteria present in the bowel, and many of these perform a useful function for the host.
They may produce certain vitamins which the host absorbs and uses.
The type of diet influences the type of bacteria present.
Some of these may act on the breakdown products of meat and fat in the diet and form cancer-causing substances.
Perhaps a high fibre diet, because of the bulk it produces, tends to dilute these cancer-causing chemicals — carcinogens — or else limits the contact between them and the bowel wall by hastening their progress through the gut.
A study in the U.S. shows a link between beer consumption and death from bowel cancer.
How beer drinking can lead to large bowel cancer is not clear.
Bowel cancer can occur in the young although it becomes more common after the age of 40.
Bleeding is the earliest and commonest sign.
Although bleeding may often be due to piles, all cases of bleeding need investigation, to exclude the possibility of cancer, as the two conditions may co-exist.
They may produce certain vitamins which the host absorbs and uses.
Some of these may act on the breakdown products of meat and fat in the diet and form cancer-causing substances.
Perhaps a high fibre diet, because of the bulk it produces, tends to dilute these cancer-causing chemicals — carcinogens — or else limits the contact between them and the bowel wall by hastening their progress through the gut.
A study in the U.S. shows a link between beer consumption and death from bowel cancer.
How beer drinking can lead to large bowel cancer is not clear.
Bowel cancer can occur in the young although it becomes more common after the age of 40.
Bleeding is the earliest and commonest sign.
Although bleeding may often be due to piles, all cases of bleeding need investigation, to exclude the possibility of cancer, as the two conditions may co-exist.
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