American Journal of Clinical Nutrition
05/03/2002
By Mark Moran
Health claims for two dietary fibers approved by the United States Food and Drug Administration on the assumption that daily servings would reduce cardiovascular disease risk, appear to be supported in a double-blind, randomized crossover trial.
Across a population, intake of ß-glucan (0.75 g/serving) and psyllium (1.78 g/serving) four times a day is likely to produce a significant reduction in risk for cardiovascular disease. For the individual patient, however, the reduction in risk may be relatively small, say researchers in Canada and Italy.
Sixty-eight hyperlipidemic adults consumed a high-fiber diet, which served as the experimental diet, and a low-fat, low-cholesterol diet, which served as the control, for one month each in a randomized crossover study. The high-fiber diet included four servings daily of foods containing ß-glucan or psyllium that delivered eight grams per day more soluble fiber than did similar, unsupplemented foods in the control diet.
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