BioStacks
Solaray

Glucomannan Rhizome Extract

1 Capsule · 100 servings · $0.17/serving

iHerbAmazon

Every active here is dosed below the amount studied to work. See how each one compares in the breakdown below.

Ingredients (1)

Glucomannan

20%

Dose

600 mg

Target

3000–4000 mg

Form

—

Other Ingredients (3)

Rice ExtractFiller

Rice-based ingredients carry risk of inorganic arsenic contamination. Vague labeling — 'rice extract' does not specify what is extracted or standardized. Used as a cheap filler with no supplemental benefit.

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

HypromelloseCapsule

Plant-derived capsule material from cellulose

How to Take It

Take it anytime

Timing doesn't matter for this one — taking it consistently does.

With or without food

On the label

Take vegcap daily.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$16.99

$10$20

Near the median of 12 konjac root fiber supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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