Navigation Links
Starchy Foods May Boost Risk of Breast Cancer Recurrence

By Kathleen Doheny
HealthDay Reporter

THURSDAY, Dec. 8 (HealthDay News) -- Increased consumption of carbohydrate-rich foods, especially starches, may boost the risk of breast cancer recurrence, new research finds.

Researcher Jennifer Emond, a public health doctoral student at the University of California, San Diego, looked at changes in the amount of carbohydrates, particularly starchy foods such as potatoes, that breast cancer survivors ate over a one-year period. Then she tracked the number of recurrences.

"Women who increased their carbohydrates and particularly their starch intake had a greater risk of recurrence than the women who decreased [it]," she said.

A link between a high-carb diet and a higher breast cancer risk has been reported before, but this new study focused particularly on starchy carbs, said Emond. She was scheduled to present the findings this week at the 2011 San Antonio Breast Cancer Conference.

Carbohydrates provide needed nutrients and energy, but some carbs are healthier than others. Refined carbohydrates, such as white breads and white pasta, contain more starch than whole grains. "We didn't pinpoint the exact foods," Emond said.

Emond looked at a subset of women who participated in the Women's Healthy Eating and Living Dietary Intervention Trial, which evaluated the effects of a plant-based diet for breast cancer survivors.

She divided the roughly 2,650 women into four groups, based on lowest to highest carbohydrate intake. She found that cancer recurred in 9.7 percent of those who decreased starch consumption the most compared with 14.2 percent of those with the biggest increase in starch consumption.

The women reported their carb intake at the start of the study and a year later. Carbohydrate intake was about 233 grams a day at the study's start. Those whose cancer recurred had an average increase in carbohydrates of 2.3 grams a day. Those who did not see a recurrence had an average decrease of 2.7 grams of starch a day.

Changes in starch consumption were behind nearly half the carbohydrate intake change, she found. Those whose cancer did not return decreased starch intake by 8.7 grams a day, while those with a recurrence decreased starch by only 4.1 grams a day, she said.

According to the U.S. Department of Agriculture, one slice of bread has 12.5 grams of carbohydrate, of which 10 grams are starch. A cup of pasta has 43 grams of carbs, 36 of which are starch.

Emond said she cannot explain the link between starch and breast cancer recurrence with certainty. However, starchy foods boost insulin levels, and elevated insulin levels have been linked with higher breast cancer risk, she said. The insulin may stimulate the growth of tumor cells, she explained.

The increased risk with higher starch intake held even when weight changes were taken into account, Emond said. Obesity and breast cancer have long been linked.

Marji McCullough, strategic director of nutritional epidemiology for the American Cancer Society, said the findings are noteworthy. "This is an important area of research because women who have been diagnosed with breast cancer want to know how to lower their risk of recurrence," she said.

But it's too soon to advise making any dietary changes, McCullough said. "Dietary recommendations change when several studies show the same thing," she said.

The effect of diet on breast cancer recurrence risk is much less clear than the data on the importance of maintaining a healthy body weight, she said.

"The American Cancer Society recommends that breast cancer survivors strive to achieve and maintain a healthy weight through a mostly plant-based, varied diet and regular physical activity," McCullough said.

Emond agreed it's too soon to make new diet recommendations. However, she suggested women follow the 2010 Dietary Guidelines for Americans, which recommend limiting foods and beverages with added sugars that contribute to starch intake, she said.

In a second study involving diet and breast cancer, researchers found that following a low-carbohydrate diet just two days a week produced more significant weight loss than a standard low-calorie diet followed daily. People following the intermittent diet for four months lost an average of 9 pounds while the other dieters lost an average of 5 pounds, the British researchers found.

The two-day-a-week low-carb plan was also better than the daily diet at lowering blood levels of insulin, the researchers said. McCullough called that finding ''intriguing."

Because this research was presented at a medical meeting, the data and conclusions should be viewed as preliminary until published in a peer-reviewed journal.

More information

To learn more about diet and breast cancer risk, visit the American Cancer Society.

SOURCES: Jennifer Emond, M.S., public health doctoral student, University of California, San Diego; Marji McCullough, Sc.D., R.D., strategic director of nutritional epidemiology, American Cancer Society; abstract, San Antonio Breast Cancer Conference, Dec. 6-10, 2011

Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Dieters should eat foods rich in protein, mostly from dairy, to protect bones during weight loss
2. Holiday Foods May Trigger GERD Symptoms
3. For Nutritional Punch, You Cant Beat Plant-Based Foods
4. Dairy foods may improve bone health during diet and exercise in overweight premenopausal women
5. New study finds familiarity increases the fullness that children expect from snack foods
6. Brains of Obese May Crave High-Calorie Foods More: Study
7. Certain Foods Said to Help Lower Bad Cholesterol
8. Cartoon Characters Prod Kids to Nag for Unhealthy Foods
9. The nag factor: How do children convince their parents to buy unhealthy foods?
10. Gastric Bypass May Dampen Desire for High-Fat Foods
11. Fatty Comfort Foods May Alter Brains Response to Sadness
Post Your Comments:
Related Image:
Starchy Foods May Boost Risk of Breast Cancer Recurrence
(Date:11/28/2015)... ... ... 30th at 6:00 a.m. EST until 11:59 p.m. EST, customers will be ... 20% off orders $80 or more to free gifts with purchases, there will be a ... competitive e-commerce website for skin care and cosmetic needs, customers will save on already discounted ...
(Date:11/27/2015)... CA (PRWEB) , ... November 27, 2015 , ... According ... carried out by the University of Toronto and the University of British Columbia suggested ... hospitalizations for head injuries. The article explains that part of the reason for the ...
(Date:11/27/2015)... PITTSBURGH, PA (PRWEB) , ... November 27, 2015 ... ... to be a safe and convenient way to dispense prescription medications at home, ... safe and effective way to monitor and dispense prescription medications. In doing so, ...
(Date:11/27/2015)... ... November 27, 2015 , ... ProSidebar: Fashion is a set of ... With ProSidebar: Fasion, video editors can easily add an informative sidebar to any FCPX ... Utilize presets featuring self-animating drop zones, lines, bars, and text with the ease ...
(Date:11/27/2015)... (PRWEB) , ... November 27, 2015 , ... A simply ... Jones, is an interesting show that delves into an array of issues that are ... that could benefit from open dialogue, this show is changing the subjects consumers focus ...
Breaking Medicine News(10 mins):
(Date:11/27/2015)... 27, 2015  Lannett Company, Inc. (NYSE: ... the acquisition of Kremers Urban Pharmaceuticals Inc. (KU), ... biopharmaceuticals company UCB S.A. (Euronext: UCB). ... acquired KU from UCB for total consideration of ... a customary working capital adjustment, a deduction of ...
(Date:11/26/2015)... UTRECHT , Países Bajos, November 26, 2015 /PRNewswire/ ... con la terapia fotodinámica de Bremachlorin para el cáncer ... combina la inmunoterapia con la terapia fotodinámica de Bremachlorin ... Un nuevo enfoque combina la inmunoterapia con la ...   Clinical Cancer Research . --> ...
(Date:11/26/2015)... , November 26, 2015 ... potential to use SyMRI to find optimal contrast weighting of ... tumor metastases, and has signed a research agreement with SyntheticMR ... the hospital. Using SyMRI, it is possible to generate multiple ... settings after the patient has left, thus making it possible ...
Breaking Medicine Technology: