“The issue of diet is of particular relevance to women in Asia, for whom breast cancer rates are traditionally low but increasing steadily in recent years,” explained Marilyn Tseng, Ph.D., an associate member in the population science division at Fox Chase Cancer Center in Philadelphia.
Through in-person interviews researchers established the existence of two primary dietary patterns: the “meat-sweet” diet and a “vegetable-soy” diet. The “meat-sweet” diet includes various meats - primarily pork but also poultry, organ meats, beef and lamb and with saltwater fish, shrimp and other shellfish as well as candy, dessert, bread and milk. The “vegetable-soy” pattern is associated with different vegetables, soy-based products, and freshwater fish.
Of 1,602 eligible breast cancer cases identified during the study period, in-person interviews were completed for 1,459 (91.1 percent). In-person interviews were completed for 1,556 (90.3 percent) of the 1,724 eligible controls.
The “meat-sweet” pattern was significantly associated with increased risk of breast cancer among overweight postmenopausal women. Specifically, high intake of the “meat-sweet” pattern was associated with a greater than twofold increased risk of estrogen-receptor-positive (ER+) breast cancer among these women. The results showed no overall association of breast cancer risk with the “vegetable-soy” pattern.
“Our study suggests the possibility that the “meat-sweet” pattern increased breast cancer risk by increasing obesity, Tseng said. “Low consumption of a Western dietary pattern plus successful weight control may protect against breast cancer in a traditionally low-risk Asian population that is poised to more broadly adopt foods characteristic of Western societies.”
MEDICA.de; Source: Fox Chase Cancer Center