Testicular Cancer Linked
To High Dairy Intake


NEW YORK (Reuters Health) - Canadian men who consume comparatively high amounts of dairy products have an increased risk of testicular cancer, according to a new study.
"Although testicular cancer is a relatively rare lesion, accounting for only 1.1% of all malignant neoplasms in males in Canada, it is the most common cancer among Canadian men 20 to 45 years of age," Dr. Michael J. Garner, of the University of Ottawa, Ontario, Canada, and others write in the International Journal of Cancer.
The researchers obtained dietary information from 601 patients with testicular cancer and 744 similar men without cancer. They used a 69-item food-frequency questionnaire to collect data on 17 food groups, 15 nutrients, and 4 individual foods.
Subjects who consumed high levels of dairy products had an increased risk of testicular cancer. In particular, a high intake of cheese was tied to an 87 percent higher likelihood of developing testicular cancer.
Luncheon meat intake was also associated significantly with testicular cancer risk in the total sample, Garner's team found.
The investigators report that none of the nutrients were linked the risk of testicular cancer, but carbohydrate intake was marginally associated with one type of testicular cancer.
"Our study adds significantly to the sparse literature on dietary risk factors for testicular cancer," the researchers write.
"Although the present study provides evidence of increased risk in relation to the consumption of dairy products, the role of diet in testicular cancer etiology requires further research," they conclude.
SOURCE: International Journal of Cancer, October 10, 2003.
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