Breaking
Medical News Archive Vegetarian
"Portfolio" Diet Rivals Cholesterol-Lowering Drugs
posted 07/23/03
Today’s Journal of the American Medical Association
reports that a vegetarian diet incorporating soluble fiber, soy
protein, almonds, and plant sterol ester-enriched margarine lowers
serum cholesterol concentrations about as effectively as cholesterol-lowering
statin drugs.
Forty-six adults with high cholesterol levels were randomly assigned
to either
(1) a control diet incorporating low-fat cheeses, skim milk, cereals,
and breads, along with vegetables and fruits,
(2) the control diet along with the cholesterol-lowering drug lovastatin,
20 mg/d, or
(3) an experimental “portfolio” diet—a vegetarian
diet, to which each of the following were added in the following
amounts for every 1,000 calories in the total diet:
1 gram plant sterol ester-enriched margarine
9.8 grams viscous fibers (oats, barley, and psyllium)
21.4 grams soy protein (soy milk and soy meat analogues)
14 grams of whole almonds
Eggplant and okra were added as additional sources of viscous
fiber.
After four weeks, the control diet reduced low-density lipoprotein
(LDL, or “bad”) cholesterol by 8%. The control diet
plus lovastatin lowered LDL by 30.9%. The “portfolio”
diet reduced LDL concentrations by 28.6%. There was no statistical
difference between the latter two groups. The study concludes that
the specially formulated vegetarian diet reduces LDL cholesterol
with essentially the same effectiveness as cholesterol-lowering
statin drugs.
Jenkins DJA, Kendall CWC, Marchie A, et al. Effects of a dietary
portfolio on cholesterol-lowering foods vs lovastatin on serum lipids
and C-reactive protein. JAMA 2003;290:502-510.
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