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Types of Plant Sterols / Stanols: Forms & Bioavailability

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Forms Comparison

FormBioavailabilityBest For
Sterol/Stanol Ester SupplementsHighConvenient — softgels or tablets delivering standardized 800mg-1g per serving
Fortified Foods (margarine, yogurt)HighMost studied delivery — clinical trials primarily used sterol-enriched margarines and dairy products
Free Sterol Powder/CapsulesModerateConcentrated form — may require fat-containing meal for optimal absorption

Sterol/Stanol Ester Supplements

Bioavailability: High. Best for: Convenient — softgels or tablets delivering standardized 800mg-1g per serving.

Fortified Foods (margarine, yogurt)

Bioavailability: High. Best for: Most studied delivery — clinical trials primarily used sterol-enriched margarines and dairy products.

Free Sterol Powder/Capsules

Bioavailability: Moderate. Best for: Concentrated form — may require fat-containing meal for optimal absorption.

References

  1. (). LDL-cholesterol-lowering effect of plant sterols and stanols across different dose ranges: a meta-analysis of randomised controlled studies. British Journal of Nutrition. DOI
  2. (). Plant sterols/stanols as cholesterol lowering agents: a meta-analysis of randomized controlled trials. Food & Nutrition Research. DOI