Mixed
Dietary fiber, specifically soluble gel-forming fiber, lowers blood cholesterol and reduces cardiovascular disease risk, and when added to statin therapy, doubles the efficacy of statins.
To support heart health and cholesterol levels, aim for the recommended daily fiber intake: 38 grams for men and 25 grams for women (ages 19-50). Prioritize soluble, gel-forming fibers found in oats, barley, beans, and fruits, as these are most effective at lowering cholesterol. If you are on statins, adding fiber may help them work better and potentially allow for lower doses, but consult your doctor before making changes.
A recent meta-analysis of three randomized controlled trials revealed that the addition of dietary gel-forming viscous soluble fiber doubled the efficacy of statins [5].
Why this rating
Supported by multiple meta-analyses of cohort studies and RCTs, though the paper notes limitations in observational studies.
Source
Dietary Fiber, Atherosclerosis, and Cardiovascular Disease
Ghada A. Soliman · Nutrients · 2019
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →