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Review
. 2013 Nov;113(11):1494-1503.
doi: 10.1016/j.jand.2013.07.006.

Cholesterol-lowering efficacy of plant sterols/stanols provided in capsule and tablet formats: results of a systematic review and meta-analysis

Mandana Amir Shaghaghi, Suhad S Abumweis, Peter J H Jones
Review

Cholesterol-lowering efficacy of plant sterols/stanols provided in capsule and tablet formats: results of a systematic review and meta-analysis

Mandana Amir Shaghaghi et al. J Acad Nutr Diet. 2013 Nov.

Abstract

Plant sterols/stanols-enriched foods possess well-documented low-density lipoprotein (LDL)-cholesterol-lowering effect. However, the relative efficacy of plant sterols/stanols as supplements (tablets/capsules) compared with other dietary forms still needs to be determined. Our aim was to precisely identify and quantify the LDL-cholesterol-lowering effect of plant sterols/stanols as supplements in contrast to food-based approaches. Eight eligible clinical trials published from January 1992 to April 2013 were identified from five databases. A random effect model was used to calculate weighted mean effect sizes for net differences in LDL-cholesterol concentrations. Among the included trials with the duration between 4 and 6 weeks, plant sterol/stanol dose ranged from 1.0 to 3.0 g/day administrated mainly with the main meals (2 or 3 times/day). Intake of plant sterol/stanol supplements decreased LDL-cholesterol concentrations by 12 mg/dL (0.31 mmol/L) (95% CI -0.39 to -0.23; P<0.000) compared with placebo. The test of heterogeneity was not significant (χ(2) , P=0.50, I(2)=0%). Further analysis showed no significant difference between the LDL-cholesterol-lowering action of plant sterols/stanols supplements (-12 mg/dL [-0.31 mmol/L]; 95% CI -0.39 to -0.24; P<0.0001) vs foods enriched with plant sterols/stanols (-12 mg/dL [-0.31 mmol/L]; 95% CI -0.35 to -0.27; P<0.0001). Plant sterol/stanol supplements as part of a healthy diet represent an effective means of delivering LDL-cholesterol-lowering similar to plant sterols/stanols delivered in various food formats.

Keywords: Capsule; Cholesterol reduction; Meta-analysis; Plant sterols; Tablet.

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