Fiber
Beta-Glucan Fiber
Also known as: Oat beta-glucan, Mushroom beta-glucan
Soluble fiber from oats or mushrooms with immune-modulating and cholesterol-lowering effects.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Primary uses
- Immune modulation
- Cholesterol reduction
- Blood sugar support
How it works
- Binds cholesterol in gut
- Activates immune cells via Dectin-1
- Forms viscous gel
Dosage
- Typical range
- 3 g daily for cholesterol; 250-500mg mushroom for immune
- Timing
- With meals
- With food
- Yes
- Duration
- Safe long-term
- Special populations
- Cholesterol concerns, immune support
Forms
- Oat-derived powder
- Mushroom-derived
Safety
Common side effects
- Gas
- Bloating
Contraindications
- None
Evidence notes
FDA health claim for cholesterol
Grade A: Multiple well-designed human trials support the main claims.
Related in Fiber
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.