Food is one of the main factors implicated in the onset of cancer for the following reasons:

- Supply current is too high in fat and calories and low in fruits and vegetables. Obesity causes food decrease dietary fiber are involved in the development of gastrointestinal cancer.

- Alcohol is one of the most important factors of cancer, as shown cancer rates in areas heavy consumption of spirits, as the region of Calvados. Alcohol is particularly implicated in cancers of the throat and esophagus.

- Hot drinks like tea (especially in Asian regions), are a risk factor.

- The meats are barbecued at the root of many carcinogens, like nitrosamines.

- Dyes and food additives, now well controlled, have long been a source of concern carcinogens.

- Food toxins and many mycotoxins are carcinogenic effect, particularly in the liver (aflatoxins), kidney, lung and intestine. Several studies have documented the relationship between mycotoxins and increases in certain cancers observed in the workplace. The risk seems less obvious to the general population, but scientists have found a rate of greater carcinogenic mold in homes in which live cancer patients compared to those in which people live without the disease. Mycotoxins are toxins produced by molds present in food, particularly cereals, milk and meat.
A direct link between diet and cancer, not so easy to establish

It is difficult to make a direct link between diet and cancer, because of difficulties specific evidence of this type. It is nevertheless admitted that the link between overweight and food various diseases like cardiovascular disease and cancer is plausible, which requires a genuine food re-education should emphasize the consumption of fruits and vegetables rich in vitamins, moderate consumption of meat Grilled and alcohol and consumption of dietary fiber.

Many studies are underway to understand the real interest of many dietary components in cancer prevention, especially vitamins C and E, flavonoids (wine, chocolate) or the lycopene found in fruits such as red tomatoes. For cancer specialists, wine consumption is not recommended, and they believe the risk of cancer increases, even when consumption of wine or alcohol is minimal.

A healthy balanced diet should be accompanied by adequate physical activity and continues because the sedentary lifestyle is a major risk factor of lifestyle today. Regular physical activity helps control weight, improve performance of the cardiovascular system, preventing many diseases, including, in some cases, cancer. The sport is particularly useful in preventing breast cancer.
Sweeteners

If artificial sweeteners containing saccharin, sodium cyclamate prove harmful at high doses in experimental animals. They are safe at usual doses. However, this is not the case for a number of products such as aspartame (a sweetener used in many health food or not). Numerous studies in recent decades have attempted to prove that aspartame is a carcinogen or toxic to the brain. The findings from studies on rats are alarmist, but do not for human consumption at the doses usually recommended.