Everything DoseRank tracks on the beta glucan shelf — Saccharomyces boulardii. The category itself is never ranked: 38 products get scored the moment you say what you want them to do.
How to read the scores
This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →
Answer a few questions about your goals, habits, stack, and budget. Then, DoseRank will find the products that best match your needs based on your answers. It's free and only takes 60 seconds! No account is required.
A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.
Questions
Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value — computed for the goal you picked, across this category's products. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.
Start with a goal, not a brand
Browsing beta glucan supplements without a goal makes no sense — different products do different jobs, and “best” flips depending on which job you're hiring for. These are the 45 health outcomes that matter for this category. Pick yours, and the full evidence-ranked shelf loads for that goal alone.
Gastrointestinal infection incidenceFrequency of infectious GI illnesses.21 rankedStrong
Stool consistencyForm or texture of stool.22 rankedModerate-strong
Urinary frequencyNeeding to urinate more often than normal.2 rankedStrong
Total cholesterolTotal circulating cholesterol concentration.20 rankedStrong
Autoimmune disease activityClinical or biomarker activity of autoimmune disease.1 rankedModerate-strong
SatietySense of fullness after eating.21 rankedModerate-strong
All-cause mortalityDeath from any cause; lowest-level hard clinical outcome.8 rankedModerate-strong
LDL cholesterolLow-density lipoprotein cholesterol; lower is often preferred.23 rankedStrong
Common cold incidenceFrequency of upper respiratory infections resembling the common cold.9 rankedStrong
Bone mineral densityMeasure of bone strength and mineralization.9 rankedStrong
Selenium statusBiochemical sufficiency of selenium.3 rankedStrong
Fall riskLikelihood of falling due to instability or weakness.9 rankedModerate-strong
Vitamin D statusBiochemical sufficiency of vitamin D.9 rankedStrong
Vitamin C statusBiochemical sufficiency of ascorbic acid.6 rankedStrong
Omega-3 indexRed blood cell EPA+DHA content reflecting omega-3 status.2 rankedStrongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best beta glucan supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 38 products against that goal's trials.