About Beta-Glucan
Multiple RCTs for upper respiratory infection reduction in healthy adults (Auinger et al. 2013, Fuller et al. 2012). Yeast-derived (1,3/1,6) form is most studied for immune function. Oat-derived beta-glucan has separate FDA health claim for cholesterol (different mechanism). Generally recognized as safe.
What Beta-Glucan supports
- Reduces incidence and duration of upper respiratory infections (multiple RCTs)
- Supports innate immune cell activity (NK cells, macrophages)
How much Beta-Glucan to take
The RDA prevents deficiency. The effective range is what clinical trials used to actually move the outcome.
Effective
250–500
mg
250–500 mg/day yeast-derived 1,3/1,6-beta-glucan. URI reduction trials used 250 mg/day (Auinger et al. 2013).
Clinical evidence
Moderate clinical evidence. Multiple clinical trials show reduced upper respiratory infections in healthy adults
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