Among breast cancer survivors, adopting a low-fat diet high in vegetables, fruit and fibre does not prevent the cancer from returning or prolong survival, according to a paper in the Journal of the American Medical AssociationDr John P Pierce and his associates designed the Women’s Healthy Eating and Living (WHEL) trial, based on evidence that plant-derived foods contain anti-cancer chemicals.
Pierce, at the University of California, San Diego, and his team describe the intervention as “a telephone counselling program supplemented with cooking classes and newsletters that promoted daily targets of five vegetable servings plus 16 ounces of vegetable juice; three fruit servings; 30 grams of fibre; and 15 to 20 per cent of” calories from fat.
Subjects in the comparison group received care as usual and were given publications from the National Cancer Institute and the US Department of Health and Human Services, describing the “5-A-Day” dietary guidelines.
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