A study of 7 men on a 3 week nutritionally controlled diet followed by an addition of 21 g/day of psyllium, a dietary fiber, to their diet for 3 weeks found total cholesterol, LDL cholesterol, and HDL cholesterol were reduced. After 10 days, total was 35 mg/dL and after 3 weeks it had been further reduced to 30 mg/dL. After 3 weeks, LDL cholesterol was reduced by 15 mg/dL and HDL was reduced by 4 mg/dL. (134)
The hypocholesterolemic (low cholesterol) effects of psyllium and pectin enriched (both soluble fibers) cereals were examined in this randomized, controlled study (n=58 men). Following a diet only phase (6 weeks minimum), either corn flakes or pectin enriched or psyllium enriched cereal was randomly added to a participant’s diet for 6 more weeks. Following the diet only, total cholesterol was reduced by 3.8%. Following the addition of cereal, researchers found that the psyllium enriched cereal lowered cholesterol more effectively (total cholesterol, -5.9%; LDL cholesterol -5.7%) than the pectin enriched cereal (total cholesterol, -2.1%; LDL cholesterol -3.9%). (48)
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