Beta-glucan lowers cholesterol significantly
8.0Strong
evidence
evidence
The Claim
There is a widespread belief that beta-glucan supplements can dramatically reduce cholesterol levels, thus preventing heart disease.
Origin
This belief stems from marketing claims and early studies that showed a positive, yet modest, effect on cholesterol reduction.
What Science Says
Systematic reviews and meta-analyses have found that beta-glucan can reduce LDL cholesterol levels by 5-10% when consumed at doses of 3 grams per day or more. However, the effect size is modest and should be considered as part of a broader dietary and lifestyle approach to cholesterol management.
Verdict
Partially True
Sources
- PMID:27724985 The effect of oat β-glucan on LDL-cholesterol, non-HDL-cholesterol and apoB for CVD risk reduction: a systematic review and meta-analysis of randomised-controlled trials.
- PMID:35631184 Effects of Oat Beta-Glucan Intake on Lipid Profiles in Hypercholesterolemic Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
- PMID:36657917 The separate effects of whole oats and isolated beta-glucan on lipid profile: A systematic review and meta-analysis of randomized controlled trials.