by kathleen doheny
health reporter
Diet For Extreme Fat Loss - High-Fat Diet May Boost Breast Cancer Risk
Now, the new survey suggests that you can increase the chances of three common types of breast cancer.
in a large European study that evaluates more than 337,000 women in 10 countries over 11 years old, the researchers found that the more saturated women are about 30% more likely to develop breast cancer than those which ate the minimum.
While the study showed an association between a high-fat diet and risk of breast cancer, has not proved cause and effect.
"The results of this great study provide support for the hypothesis that breast cancer is related to dietary fat," said the author of the Sabina Sieri study, a researcher of the Department of Preventivo
Sieri and his team found that a high consumption of total fat and saturated fat was linked to an increased risk of breast cancer subtypes known as receptor-positive (er-positive) and positive progesterone (propeito). High fat diets were also linked to a raised risk of developing negative breast cancer, researchers observed.
cancers that are er- or pr-positive grow in response to these hormones. Cancers that are HER2-negative tested negative for the presence of a protein, HER2, which promotes the growth of cancer cells.
A strength of the new study is its large number, said Mia Gaudet, director of genetic epidemiology at the American Cancer Society. Mama cancer subtypes linked to fat intake are common, she said. "Most breast cancers in the US and Europe is positive, PR-positive, Her2-negative," she remarked.
In the new study, women answered questions about their fat intake and other habits that could affect the risk, including smoking, age in the first period, history of pregnancy, use of hormone therapy and their index Body mass (a measurement of body fat based on height and weight).
To correct measurement errors in the diet questionnaire, the researchers interviewed a random sample of 8% of women, asking for a 24-hour dietary reminder.
After an average follow-up of 11.5 years, just over 10,000 women were diagnosed with breast cancer.
When cancer cases were compared with fat intake, "we find an association between exposure to saturation consumption and breast cancer," Sieri said. / p>
women in the group by eating the most saturated average average of 48 grams per day, compared to 15 grams in the group eating the minimum. A shredded cheddar cheese room shred, for example, has 10 grams of fat, 5 grams saturated.
The link can not be explained for sure, said Sieri, but it is possible that the fat intake increases the levels of the body's own estrogen, which can stimulate the growth of breast cancer cells.
"I think it is important that these discoveries are replicated in other studies," said Gaudet. While researchers discarded many factors that could explain an increased risk of cancer, they did not rule out all possible factors, it said.
Until the more study is done, Sieri tells women: "In general, it is recommended that the percentage of the total calories of saturated fat should not exceed 10% for women."
Gaudet agreed. "If you have a diet mainly based on plants, this will help you keep your fat intake low."
