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Beta-Glucan (Oat / Yeast)

A soluble fiber with impressive immune-modulating abilities — it's a staple in both heart health and immune support, backed by decades of research.

Benefits

  • +FDA-recognized: lowers LDL cholesterol (at 3g+ per day)
  • +Supports and modulates immune function
  • +Helps stabilize blood sugar after meals
  • +Feeds beneficial gut bacteria
  • +May support wound healing and skin health

Dosage & Cost

Range3–10 g/day
TimingWith a meal — especially breakfast for cholesterol benefits
Daily cost0.10–0.40

Oat-derived and yeast-derived (Saccharomyces cerevisiae) beta-glucans have different structures. Oat beta-glucan is best for cholesterol; yeast beta-glucan is popular for immune support.

Side Effects

  • !Very gentle — one of the safest fibers
  • !May cause mild bloating if introduced quickly
  • !Could slightly reduce cholesterol-lowering medication effectiveness if taken simultaneously

Food Sources

  • Oats and oatmeal (most accessible source)
  • Barley
  • Mushrooms (especially reishi and shiitake)
  • Yeast cell walls

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This page is for informational purposes only. The information here has not been evaluated by the Food and Drug Administration (FDA). No supplement discussed on this page is intended to diagnose, treat, cure, or prevent any disease. Please consult your doctor or a qualified healthcare professional before taking any dietary supplement.