Lee Swanson Research Update

Flaxseed May Help Curb Prostate Tumor Growth

August 2007

Flaxseed, rich in omega-3 essential fatty acids, appears to help curb the growth of prostate tumors, according to a study presented at the annual meeting of the American Society of Clinical Oncology.

Scientists studied a group of 161 men with prostate cancer, who were about to have their tumors surgically removed. The men were divided into four smaller groups a month before their scheduled surgeries. One group followed their regular diets, one took 30 grams of flaxseed per day, one restricted their dietary intakes of fat to less than 20% of total calories and one took flaxseed and restricted their dietary fat.

Researchers based their findings on how fast cancer cells in the men were dividing. They discovered that tumors grew about 30% to 40% slower in the men taking flaxseed whether or not they followed a low-fat diet. Researchers noted that reducing fat in the diet did not appear to have any effect on prostate cancer growth.

Researcher Wendy Demark-Wahnefried, PhD, a professor in the school of nursing and the department of surgery at Duke University Medical Center in Durham, NC said that her team decided to study flaxseed because it is rich in disease-fighting omega-3 fatty acids.

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