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- Title
Effect of dietary pulse intake on established therapeutic lipid targets for cardiovascular risk reduction: a systematic review and meta-analysis of randomized controlled trials.
- Authors
Ha, Vanessa; Sievenpiper, John L.; de Souza, Russell J.; Jayalath, Viranda H.; Mirrahimi, Arash; Agarwal, Arnav; Chiavaroli, Laura; Blanco Mejia, Sonia; Sacks, Frank M.; Di Buono, Marco; Bernstein, Adam M.; Leiter, Lawrence A.; Kris-Etherton, Penny M.; Vuksan, Vladimir; Bazinet, Richard P.; Josse, Robert G.; Beyene, Joseph; Kendall, Cyril W. C.; Jenkins, David J. A.
- Abstract
Background: Evidence from controlled trials encourages the intake of dietary pulses (beans, chickpeas, lentils and peas) as a method of improving dyslipidemia, but heart health guidelines have stopped short of ascribing specific benefits to this type of intervention or have graded the beneficial evidence as low. We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) to assess the effect of dietary pulse intake on established therapeutic lipid targets for cardiovascular risk reduction. Methods: We searched electronic databases and bibliographies of selected trials for relevant articles published through Feb. 5, 2014. We included RCTs of at least 3 weeks' duration that compared a diet emphasizing dietary pulse intake with an isocaloric diet that did not include dietary pulses. The lipid targets investigated were low-density lipoprotein (LDL) cholesterol, apolipoprotein B and non-high-density lipoprotein (non-HDL) cholesterol. We pooled data using a random-effects model. Results: We identified 26 RCTs (n = 1037) that satisfied the inclusion criteria. Diets emphasizing dietary pulse intake at a median dose of 130 g/d (about 1 serving daily) significantly lowered LDL cholesterol levels compared with the control diets (mean difference -0.17mmol/L, 95% confidence interval -0.25 to -0.09 mmol/L). Treatment effects on apolipoprotein B and non-HDL cholesterol were not observed. Interpretation: Our findings suggest that dietary pulse intake significantly reduces LDL cholesterol levels. Trials of longer duration and higher quality are needed to verify these results.
- Subjects
DYSLIPIDEMIA; LIPIDS; CARDIOVASCULAR diseases risk factors; CARDIOVASCULAR disease prevention; RANDOMIZED controlled trials; THERAPEUTICS
- Publication
Canadian Medical Association Journal (CMAJ), 2014, Vol 186, Issue 8, pE252
- Publication type
Article
- DOI
10.1503/cmaj.131727