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Dairy milk intake may increase breast cancer risk: Study

dairy milk

Consuming dairy milk may increase risk of breast cancer among women, a recent study, published in the International Journal of Epidemiology has revealed.

Researchers have found that even moderate amount of dairy milk consumption– one cup per day could increase risk upto 50 percent. During the part of the study, they checked the impact of various amount of consummation of milk.

“Fairly strong evidence that either dairy milk or some other factor closely related to drinking dairy milk is a cause of breast cancer in women,” said study first author Gary E. Fraser from Loma Linda University in the US.

“Consuming as little as 1/4 to 1/3 cup of dairy milk per day was associated with an increased risk of breast cancer of 30 per cent,” Fraser said.

By drinking up to one cup per day, the associated risk went up to 50 per cent, and for those drinking two to three cups per day, the risk increased further to 70 per cent to 80 per cent, the researchers said.

For the findings, dietary intakes of nearly 53,000 North American women were evaluated for the study, all of whom were initially free of cancer and were followed for nearly eight years.

By the end of the study period, there were 1,057 new breast cancer cases during follow-up. No clear associations were found between soy products and breast cancer, independent of dairy.

“However,” he said, “dairy foods, especially milk, were associated with increased risk, and the data predicted a marked reduction in risk associated with substituting soymilk for dairy milk.”

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