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- HEALTH, Page 80Hold the Oat Bran
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- Well-intentioned as it may be, the A.H.A. is stepping into a
- quagmire by trying to serve as a dietary oracle. Too often
- scientific ground shifts, and today's notion of sound
- nutritional advice becomes tomorrow's myth. The latest case in
- point: oat bran. Two years ago, the high-fiber grain was
- elevated to alimentary sainthood after a few studies showed that
- people who ate a diet rich in the stuff enjoyed a significant
- drop in their cholesterol levels. Doctors began recommending the
- grain to patients, and food manufacturers rushed to add it to
- everything from muffins to tortilla chips.
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- Last week the halo slipped. According to a report in the
- New England Journal of Medicine, oat bran has no special power
- to reduce cholesterol levels. In fact, it works no better than
- low-fiber grains and causes more bloating and diarrhea than
- some. In a study performed at the Brigham and Women's Hospital
- in Boston, Dr. Frank Sacks and colleagues randomly switched 20
- healthy men and women between two six-week diets: one contained
- 100 grams of oat bran daily, the other 100 grams of low-fiber
- wheat. Cholesterol levels dropped an average 7.5% -- no matter
- the diet. The simple explanation: both grains work indirectly by
- displacing other items in the diet. People who fill up on oat
- bran or wheat have less room for scrambled eggs, chocolate cake
- and other fatty delectables.
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