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Starch Intake May Influence Risk For Breast Cancer Recurrence

December 9, 2011

Researchers have linked increased starch intake to a greater risk for breast cancer recurrence, according to results presented at the 2011 CTRC-AACR San Antonio Breast Cancer Symposium, held Dec. 6-10, 2011.

“The results show that it’s not just overall carbohydrates, but particularly starch,” said Jennifer A. Emond, M.S., a public health doctoral student at the University of California, San Diego. “Women who increased their starch intake over one year were at a much likelier risk for recurring.”

Researchers conducted a subset analysis of 2,651 women who participated in the Women’s Healthy Eating and Living (WHEL) Dietary Intervention Trial, a plant-based intervention trial that enrolled about 3,088 survivors of breast cancer. WHEL researchers studied breast cancer recurrence and followed the participants for an average of seven years.

The subset analysis involved an examination of how changes in carbohydrate intake influenced breast cancer recurrence. “The WHEL dietary trial, even though it focused on fruits and vegetables, fiber and fat, didn’t really have a specific carbohydrate goal,” Emond said.

She and her colleagues obtained carbohydrate intake information from multiple 24-hour dietary recalls at baseline and at one year. In an annual phone interview, participants reported everything they had eaten during the last 24 hours.

At baseline, carbohydrate intake was 233 grams per day. Results showed that women whose cancer recurred had a mean increase in carbohydrate intake of 2.3 grams per day during the first year, while women whose cancer did not recur reported a mean decrease of 2.7 grams per day during the first year.

Starches were particularly important, Emond said. Changes in starch intake accounted for 48 percent of the change in carbohydrate intake. Mean change in starch intake during the first year was




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