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July 4, 2007 | Issue 123 |
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The Real SuperFoods Diet
“More and more, an eating plan full of fiber-rich whole foods like fruits, vegetables, whole grains, and beans is looking like the diet for disease prevention,” states Jeffrey Novick, MS, RD, Director of Nutrition at the Pritikin Longevity Center® & Spa.
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Cancer
The latest research found that people who had for years followed a vegetarian, fiber-rich diet had lower blood levels of several hormones and other substances linked to certain cancers compared to people of the same average age (53) eating a Western-style diet full of high-fat, high-protein meat and dairy products and heavily processed foods like fast foods, potato chips, and candy.(1)
Another group studied, long-distance runners eating a largely Western-style diet, also had lower levels of most of these cancer-linked substances.
Lower levels of cancer-linked IFG-1
The vegetarians, however, had a big edge over both runners and the Western diet group because they were the only group that had markedly lower levels of a body protein called IGF-1, or insulin-like growth factor. High IFG-1 levels are associated with “a greater risk of breast (premenopausal), prostate, and colon cancers,” explained lead author Luigi Fontana, MD, and colleagues from Washington University School of Medicine in St. Louis.
Several past studies of people attending the Pritikin Longevity Center have also demonstrated dramatic drops in IGF-1, and in just two to three weeks of adopting the Pritikin Program.(2,3,4)
What makes the results from the new Washington University study noteworthy is their suggestion that the IGF-1-lowering effects of a healthy diet are long lasting. Not just for a few weeks but for years and years does a fiber-rich, whole foods diet keep IGF-1 levels low.
Moreover, the healthy eating plan in and of itself – irrespective of its effect on body weight – was the major force behind the vegetarians’ low levels of IGF-1. The runners were just as lean as the vegetarians, but only the vegetarians reaped low IGF-1 levels.
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Pritikin Perspective - Healthy Living Made Easier
Pritikin Perspective is a publication for Alumni of the Pritikin Longevity Center. It is dedicated to helping people make healthy changes in their lives. The articles in this publication should not be considered specific medical advice, as each individual circumstance is different. You are strongly encouraged to seek medical advice before beginning a program of diet and exercise.
Editor/Writer: Eugenia Killoran.
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