According to the American Institute for Cancer Research (AICR), the world's most comprehensive cancer study being conducted in establishing the link between diet and cancer risk has been going on for over a decade and few people hear about it. Over 80 scientific papers based on the study have been published in journals such as the Journal of the National Cancer Institute, the Lancet, the Journal of Nutrition.

The study -- called the European Prospective Investigation into Cancer and Nutrition (EPIC) -- is an enormous undertaking involving 521,483 individuals in 10 different European countries. EPIC is unique because the populations being tracked are so diverse in eating habits. But this is precisiely what gives the study the advantage it has in making comparisons and noting trends.

According to EPIC, a few of the emerging results found in the link between diet and cancer are:

    * Consumption of meat sharply increased risk of stomach cancer and esophageal cancer. For every 100 grams of meat consumed by subjects, risk for stomach cancer more than tripled. The association between meat intake and stomach cancer was considerably stronger among subjects with populations of H. pylori bacteria in their stomachs.

    * Two indicators of abdominal obesity, waist circumference and waist-to-hip ratio, were strongly associated with colon cancer risk in both sexes. Men with the largest waist circumference had 39 percent higher risk of colon cancer than men with the smallest, for example, while women in the study with the largest waist circumference has a 48 percent higher risk than women with the smallest waists.
    * Blood samples of women with breast cancer were compared to blood samples of women without breast cancer. Women over 60 whose blood was given under non-fasting conditions, high levels of serum C-peptide, that could reflect insulin resistance -- long suspected of contributing to cancer risk -- was associated with a doubling of breast cancer risk.
    * The risk for oral and pharyngeal cancers drop by 9 percent for every 80 grams of fruits and vegetables consumed per day.

Researchers are beginning to come to some conclusions involving the data they have to date that clearly shows that globally, diets that are high in fruits, vegetables, fiber and fish are associated with greater cancer prevention -- with obesity and sedentary lifestyles much larger factors in increasing cancer risk.