T10Top 10 Best Supplements
Last updated: Aug 2026

Top 10 Best Glucomannan in 2026

These are the top 10 glucomannan right now, ordered by how many verified reviews each has earned, 14,497 in total across the list.

Our Top Pick
1
NOW Foods Glucomannan, 575 mg, 180 Veg Capsules

Glucomannan, 575 mg, 180 Veg Capsules

6,287 verified reviews
NOW Foods's glucomannan pick for value and quality
  • 575 MG per serving
  • 180 vegetarian capsules per bottle
  • In stock and ready to ship

How we rank it: Glucomannan, 575 mg, 180 Veg Capsules takes our top spot: it's the standout glucomannan in this guide, earning the lead for its strong balance of quality and price.

9.1
Excellent
$16.52
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2
NOW Foods Glucomannan, Pure Powder, 8 oz (227 g)

Glucomannan, Pure Powder, 8 oz (227 g)

2,098 verified reviews
NOW Foods's glucomannan pick for value and quality
  • 227 G per serving
  • Comes as powder
  • 8 oz size

How we rank it: We placed Glucomannan, Pure Powder, 8 oz (227 g) at #2 thanks to its strong balance of quality and price.

9.3
Excellent
$16.53
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3
Nutricost Glucomannan Konjac Root Extract, 180 Capsules (600 mg per Capsule)

Glucomannan Konjac Root Extract, 180 Capsules (600 mg per Capsule)

1,144 verified reviews
Nutricost glucomannan rated 4.6/5 by shoppers
  • 600 MG per serving
  • 180 capsules per bottle
  • Popular glucomannan choice

How we rank it: At #3, Glucomannan Konjac Root Extract, 180 Capsules (600 mg per Capsule) earns its spot for how consistently shoppers reach for it.

9.3
Excellent
$16.95
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4
Nature's Way Glucomannan from Konjac Root, 100 Vegan Capsules (665 mg per Capsule)

Glucomannan from Konjac Root, 100 Vegan Capsules (665 mg per Capsule)

1,092 verified reviews
Nature's Way glucomannan rated 4.5/5 by shoppers
  • 665 MG per serving
  • 100 vegetarian capsules per bottle
  • Vegan-friendly

How we rank it: Glucomannan from Konjac Root, 100 Vegan Capsules (665 mg per Capsule) lands at #4 largely for its clean, allergen-conscious formula.

9.1
Excellent
$12.50
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5
Absolute Nutrition Absolutely Full, 60 Capsules

Absolutely Full, 60 Capsules

1,004 verified reviews
Absolute Nutrition's glucomannan pick for value and quality
  • 60 capsules per bottle
  • Popular glucomannan choice
  • In stock and ready to ship

How we rank it: We placed Absolutely Full, 60 Capsules at #5 thanks to its strong balance of quality and price.

8.3
Very Good
$15.35
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6
Absolute Nutrition Absolutely Full, 120 Capsules

Absolutely Full, 120 Capsules

1,004 verified reviews
Absolute Nutrition glucomannan rated 4.1/5 by shoppers
  • 120 capsules per bottle
  • Absolute Nutrition formula
  • Popular glucomannan choice

How we rank it: Absolutely Full, 120 Capsules lands at #6 largely for Absolute Nutrition's reputation for quality.

8.3
Very Good
$28.18
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Best Value
7
Swanson Vitamins Glucomannan, 665 mg, 90 Capsules

Glucomannan, 665 mg, 90 Capsules

937 verified reviews
Swanson Vitamins glucomannan rated 4.6/5 by shoppers
  • 665 MG per serving
  • 90 capsules per bottle
  • Popular glucomannan choice

How we rank it: We placed Glucomannan, 665 mg, 90 Capsules at #7 thanks to how consistently shoppers reach for it.

9.2
Excellent
$8.99
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8
Natural Balance Glucomannan™, Maximum Strength, 90 Capsules (666 mg per Capsule)

Glucomannan™, Maximum Strength, 90 Capsules (666 mg per Capsule)

527 verified reviews
Natural Balance's glucomannan pick for value and quality
  • 666 MG per serving
  • 90 capsules per bottle
  • Extra-strength formula

How we rank it: Glucomannan™, Maximum Strength, 90 Capsules (666 mg per Capsule) lands at #8 largely for its strong balance of quality and price.

9.0
Excellent
$18.29
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9
Nutricost Glucomannan, Unflavored, 17.9 oz (500 g)

Glucomannan, Unflavored, 17.9 oz (500 g)

265 verified reviews
Popular glucomannan with 265 reviews
  • 500 G per serving
  • 17.9 oz size
  • Unflavored

How we rank it: We placed Glucomannan, Unflavored, 17.9 oz (500 g) at #9 thanks to its strong balance of quality and price.

9.4
Excellent
$26.95
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10
Solaray Glucomannan, Rhizome Extract, 600 mg, 100 VegCaps

Glucomannan, Rhizome Extract, 600 mg, 100 VegCaps

139 verified reviews
Popular glucomannan with 139 reviews
  • 600 MG per serving
  • Comes as vegetarian capsules
  • Solaray formula

How we rank it: At #10, Glucomannan, Rhizome Extract, 600 mg, 100 VegCaps earns its spot for how consistently shoppers reach for it.

9.6
Exceptional
$16.99
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Full Comparison Table

#ProductScorePrice
1Glucomannan, 575 mg, 180 Veg Capsules9.1$16.52View →
2Glucomannan, Pure Powder, 8 oz (227 g)9.3$16.53View →
3Glucomannan Konjac Root Extract, 180 Capsules (600 mg per Capsule)9.3$16.95View →
4Glucomannan from Konjac Root, 100 Vegan Capsules (665 mg per Capsule)9.1$12.50View →
5Absolutely Full, 60 Capsules8.3$15.35View →
6Absolutely Full, 120 Capsules8.3$28.18View →
7Glucomannan, 665 mg, 90 Capsules9.2$8.99View →
8Glucomannan™, Maximum Strength, 90 Capsules (666 mg per Capsule)9.0$18.29View →
9Glucomannan, Unflavored, 17.9 oz (500 g)9.4$26.95View →
10Glucomannan, Rhizome Extract, 600 mg, 100 VegCaps9.6$16.99View →

How We Rank Glucomannan

Our editorial team evaluates every product on the factors that matter most to shoppers, not just price.

1
Verified review volume
The number of genuine customer reviews each glucomannan has earned. This is our primary ranking signal and the clearest measure of real-world popularity.
2
Average customer rating
The star rating shoppers give after buying, which reflects satisfaction with quality and results.
3
Price & value
We factor in list price so you can weigh cost against rating and popularity, and flag the best-value picks.
4
Brand & availability
We prioritise products from established brands that are in stock and ready to ship.

Frequently Asked Questions

What brands make the best glucomannan?

Top-reviewed brands in this category include NOW Foods, Nutricost, Nature's Way, Absolute Nutrition and others.

What is the best glucomannan?

Based on verified customer review counts, Glucomannan, 575 mg, 180 Veg Capsules by NOW Foods is the best-reviewed glucomannan, with 6,287 reviews and a 4.5/5 rating.

How much do glucomannan cost?

On this list, prices range from $8.99 to $28.18, with a typical price around $16.95.

Which glucomannan has the most reviews?

Glucomannan, 575 mg, 180 Veg Capsules leads with 6,287 verified reviews, followed by Glucomannan, Pure Powder, 8 oz (227 g) with 2,098.

Which glucomannan is the best value?

Glucomannan, 665 mg, 90 Capsules is the lowest-priced pick at $8.99, with a 4.6/5 rating from 937 reviews.

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