Everything DoseRank tracks on the glucomannan shelf — Oat Beta-Glucan. The category itself is never ranked: 18 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 glucomannan 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 6 health outcomes that matter for this category. Pick yours, and the full evidence-ranked shelf loads for that goal alone.
Total cholesterolTotal circulating cholesterol concentration.18 rankedStrong
LDL cholesterolLow-density lipoprotein cholesterol; lower is often preferred.18 rankedStrong
SatietySense of fullness after eating.18 rankedModerate-strong
ConstipationInfrequent, difficult, or hard bowel movements.18 rankedModerate-strong
Body weightTotal body mass measured over time.18 rankedModerate-strong
Fasting blood glucoseBlood glucose after fasting.18 rankedModerate-strongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best glucomannan supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 18 products against that goal's trials.