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Infectious Disease

From pneumonia to sepsis, infections remain a leading cause of illness and death worldwide. Beta glucan, a natural immune-modulating fiber, has been studied for decades as a way to strengthen frontline defenses and improve recovery from bacterial, viral, fungal, and parasitic infections.

We analyze peer-reviewed research on supplements.

We rely on peer-reviewed scientific research to determine what’s truly effective. Our goal is to provide clear, unbiased information to help you make better health decisions.

We use AI tools to help summarize studies, and every piece of content is reviewed and approved by qualified experts, ensuring it’s accurate and trustworthy.

Beta Glucan is fully independent — we don’t sell products, run ads, or accept sponsorships. Our only focus is delivering reliable, science-backed insights.

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Beta Glucans: The Universal Biological Key to Supercharging Immunity

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Yeast Beta-glucan (β-glucan) Supplement Containing β-Glucans, Selenium, and Zinc May Boost Immune Response to COVID-19 and Flu VaccinesNew

Beta-glucan (β-glucan) Derived from Shiitake Mushrooms may Reduce COVID Immune Response linked to Lung Injury New

Yeast Beta-glucan (β-glucan) Supplements Show Promise in Reducing Severe Inflammation and Clotting Risks in COVID-19 PatientsNew

An Alpha-glucan (⍺-glucan) Supplement Shows Promise for Easing Chronic Symptoms and Inflammation in Lyme Disease PatientsNew

An Oral Beta-glucan (β-glucan) Supplement reduces the severity of Lyme Arthritis and Boosts Cellular Immune Response in MiceNew

Yeast Beta Glucan (β-glucan) Optimizes the Immune Response to Prevent Lung Damage During Flu Infection in MiceNew

A Yeast Beta Glucan (β-glucan) Capsule Supplement Reduces the Severity of Cold Symptoms in Immunocompromised AdultsNew

A Daily Beta Glucan (β-glucan) Supplement May Boost Flu Shot Benefits in Older AdultsNew

Beta Glucan (β-glucan) Enhances Antibody Response Following Flu Vaccination in Older AdultsNew

A β-glucan Drink Supplement Reduces the Severity of Cold Symptoms in Marathon Runners New

  1. Mah Beverage Containing Dispersible Yeast β-Glucan Decreases Cold/Flu Symptomatic Days After Intense Exercise: A Randomized Controlled Trial 2020
  2. Moreno Yeast Beta-Glucan Enhances Antibody Response Following Influenza Vaccination - A Double-Blind, Randomized, Placebo-Controlled Pilot Trial. 2025
  3. Dharsono Effects of Yeast (1,3)-(1,6)-Beta-Glucan on Severity of Upper Respiratory Tract Infections: A Double-Blind, Randomized, Placebo-Controlled Study in Healthy Subjects 2019
  4. Khan β-Glucan reprograms neutrophils to promote disease tolerance against influenza A virus 2025
  5. Salerno A Pilot Open-Label Study Assessing the Effects of AHCC Supplementation on Lyme Disease Patients 2019
  6. Raghavan Beneficial effects of novel aureobasidium pullulans strains produced beta-1,3-1,6 glucans on interleukin-6 and D-dimer levels in COVID-19 patients; results of a randomized multiple-arm pilot clinical study 2021
  7. Murphy β-Glucan extracts from the same edible shiitake mushroom Lentinus edodes produce differential in-vitro immunomodulatory and pulmonary cytoprotective effects - Implications for coronavirus disease (COVID-19) immunotherapies. 2020
  8. Rodriguez Effect and Tolerability of a Nutritional Supplement Based on a Synergistic Combination of β-Glucans and Selenium- and Zinc-Enriched Saccharomyces cerevisiae (ABB C1®) 2021

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