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A meta-analysis of 28 RCTs (n=1,924) found that psyllium husk supplementation (7-15g/day) reduced LDL cholesterol by an average of 7% (0.33 mmol/L), with consistent effects across diverse populations and no significant adverse events.
| Study | Participants | Finding | Quality |
|---|---|---|---|
Effect of psyllium (Plantago ovata) fiber on LDL cholesterol and alternative lipid targets: a systematic review and meta-analysis of randomized controlled trials Jovanovski E, Yashpal S, Engkaninan A, Gijón-Conde T, Gómez-Juaristi M, et al. — American Journal of Clinical Nutrition (2018) | 1,924 | Psyllium fiber at a median dose of 10.2g/day reduced LDL cholesterol by 0.33 mmol/L | High |
For adults with mildly elevated LDL cholesterol (130-190 mg/dL), 10-15g/day of psyllium husk taken before meals can reduce LDL by approximately 7%. This is one of the most evidence-backed natural cholesterol interventions and is FDA-approved for this claim. Start with 5g/day and increase gradually to minimize bloating.
A comprehensive meta-analysis evaluating the LDL cholesterol-lowering effects of psyllium husk fiber supplementation across 28 randomized controlled trials in adults with mild to moderate hypercholesterolemia.
A meta-analysis of 28 trials found psyllium reduces LDL cholesterol by approximately 7% (about 13 mg/dL). This effect is consistent and dose-dependent — 10-15g/day shows the best results. While modest compared to statins, it is meaningful for borderline-high cholesterol.
LDL cholesterol reductions begin within 3-4 weeks of starting psyllium at adequate doses (10-15g/day). Maximum benefit is typically reached by 6-8 weeks. The effect is maintained with continued daily use.
Yes, but take psyllium at least 2 hours before or 4 hours after statin medications, as psyllium can reduce drug absorption. When combined with statins, the LDL-lowering effects are additive. Always consult your prescribing physician before combining.
Take 5g of psyllium husk mixed in 8oz of water, 2-3 times daily before meals (total 10-15g/day). Start at 5g/day for the first week to allow GI adjustment. Drink plenty of additional water throughout the day to prevent constipation.
No. The meta-analysis found no significant effect of psyllium on triglycerides or HDL cholesterol. Psyllium primarily works by binding bile acids in the gut, which specifically reduces LDL. For triglycerides, omega-3 fatty acids have stronger evidence.