Beta-Glucan (1,3/1,6)
Potent immune modulator derived from yeast or mushrooms.
Also known as: Yeast Beta-Glucan • Mushroom Beta-Glucan
Overview
Beta-glucans are polysaccharides found in the cell walls of bacteria, fungi, yeasts, and some plants. The 1,3/1,6 linkage is particularly known for its ability to activate the immune system, enhancing its response to pathogens.
Key Benefits
Enhances Immune Response
Activates key immune cells like macrophages, neutrophils, and natural killer (NK) cells, improving the body's ability to fight off infections.
Reduces Upper Respiratory Tract Infection (URTI) Symptoms
Studies show supplementation can reduce the incidence and severity of common cold symptoms.
Supports Gut Health
Acts as a prebiotic fiber, promoting the growth of beneficial gut bacteria.
Dosage & How to Take
A typical daily dose is between 250 mg and 500 mg.
| Purpose | Dose | Notes |
|---|---|---|
| General Immune Support | 250 mg/day | Can be taken daily for preventative support. |
| During Illness | 500 mg/day | Higher doses may be used for acute support during an infection. |
Best Time to Take
Best taken on an empty stomach to improve absorption and interaction with immune receptors in the gut.
With or Without Food
Not required, and may be less effective if taken with food.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Wellmune® | High | Clinically studied immune support | A proprietary baker's yeast beta-glucan with strong evidence. |
| Mushroom Extracts (e.g., Shiitake, Reishi) | Variable | Broader spectrum of benefits | Often contain other beneficial compounds in addition to beta-glucans. |
Side Effects & Safety
Common
- Generally well-tolerated.
Rare
- Mild digestive upset in sensitive individuals.
Contraindications
- Individuals with autoimmune conditions should consult a doctor, as it stimulates the immune system. Avoid if allergic to yeast or mushrooms.
Interactions
May counteract the effects of immunosuppressive drugs.
Scientific Research
Beta-glucan supplementation and upper respiratory tract infections in marathon runners
Supplementation with yeast beta-glucan was associated with a reduction in URTI symptoms after intense exercise.
Food Sources
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.