Best Naturals Konjac Root Glucomannan 2,000 mg (2-Pack) Review
#4 of 8 · Best Bulk Buy✓ Label verified · Supplement Facts read Oct 6, 2026Real retailer photo, cut out. Label unedited.
Buy it if you want capsules at close to powder prices. At about fifteen cents a serving across two bottles this is the cheapest way to take glucomannan in a capsule, and unlike most budget bottles it prints the timing, the water and the choking caution.
$17-19~$0.15 per 3-capsule serving (two bottles, 120 servings)
Why It Scores 8.5 — And The Label Line Behind Each Number
Dose vs the Trials
30% of score2,000 mg per three capsules is a studied amount, but the label directs it once daily rather than before each meal as the trials did.
- Per serving
- 2,000 mg konjac root (glucomannan)
Label Directions & Safety
20% of scoreAt least 8 oz of water, 30 to 45 minutes before a meal, and a printed choking caution; the listing graphic misstates servings per container.
- Directions
- 3 capsules daily with at least 8 oz of water, 30-45 minutes before a meal
Testing & Manufacturing
20% of score3rd Party Lab Tested on the front label and a GMP mark on the side; made in the USA.
- Seals
- 3rd Party Lab Tested, GMP, made in USA
Formulation & Form
15% of scoreVegetable cellulose capsule with silicon dioxide, magnesium stearate and microcrystalline cellulose; a long free-from list.
- Form
- Vegetarian capsule (vegetable cellulose)
- Other ingredients
- Capsule (vegetable cellulose), silicon dioxide, magnesium stearate (vegetable source), microcrystalline cellulose
Value
15% of scoreAbout $0.15 per serving at the two-bottle price, the cheapest capsule per gram here.
- Serving
- 3 capsules
- Count
- 2 bottles x 180 capsules (60 servings each)
- Cost per dose
- ~$0.15 per serving
Label verified. Every figure read from the Supplement Facts photo, Oct 6, 2026.
Marketing Claims Vs. Reality
2000 mg per serving.
The panel declares 2,000 mg of konjac root (glucomannan) per three vegetarian capsules.
3rd Party Lab Tested.
Printed on the front label. No lab is named and no report is linked, so we can confirm the claim is made, not what was tested.
180 servings per container.
This appears in a listing graphic. The Supplement Facts panel on the bottle says 60 servings per container, which matches 180 capsules at three per serving.
What Our Test Actually Found
Capsules at powder prices
Two bottles, 120 servings, for under twenty dollars puts the cost per gram within a cent of NOW's loose powder, with the convenience of a capsule and the right warnings on the label.
Read the panel, not the graphic
The listing's infographic triples the serving count. It is a marketing error rather than a label error, but it is the kind of carelessness that costs a product points for directions.
Full analysis: all pros & cons (7), buy if / skip if
- Cheapest capsule per gram
- Timing, water and choking caution printed
- Vegetarian capsule
- Third-party lab testing claimed on the label
- Sold as a two-bottle pack
- Listing graphic contradicts the panel
- Once-daily direction only
- You want the lowest capsule price per gram
- You want a vegetarian capsule with a testing claim on the label
- You are happy to buy two bottles at once
- You want to try one bottle first
- You want a serving that splits before each meal by the label
- Listing errors put you off a brand
At about fifteen cents a serving across two bottles this is the cheapest way to take glucomannan in a capsule, and unlike most budget bottles it prints the timing, the water and the choking caution. The capsule is vegetable cellulose and the label claims third-party lab testing. It directs one serving a day rather than splitting before meals, and its listing contradicts its own panel on servings.
Best Naturals sells this as a two-pack: each bottle holds 180 vegetarian capsules, 60 servings of 2,000 mg konjac root glucomannan. The label asks for three capsules daily with at least 8 oz of water 30 to 45 minutes before a meal and prints the caution about swelling in the throat. The front says 3rd Party Lab Tested and the side carries a GMP mark. One thing to know: a graphic in the listing says 180 servings per container, while the Supplement Facts panel says 60. The panel is right.
The bulk buy, with one listing error to ignore
If you already know glucomannan agrees with you and want months of it cheaply, this two-pack is the sensible purchase. Trust the Supplement Facts panel over the listing art, take it with a full glass of water before a meal, and split the three capsules across two meals if one large dose sits heavily.
If This Doesn’t Fit — Try These
01NOW Foods 575 mg
If you want to try glucomannan the way it was studied, this is the bottle that tells you how.
02NOW Pure Powder
If you are disciplined about stirring half a teaspoon into a full glass of water and drinking it straight away, NOW's powder gives you the studied fiber for pennies.
03Nature's Way 1,995 mg
Nature's Way gets the dose, the directions and the warning right and adds almost nothing to the fiber.
Quick Answers
How many servings are in Best Naturals Konjac Root?
Sixty per bottle: 180 capsules at three per serving, as the Supplement Facts panel states. The listing is a two-bottle pack, so 120 servings in total. A graphic that says 180 servings per container is wrong.
Is Best Naturals glucomannan vegetarian?
Yes. The capsule is vegetable cellulose and the other ingredients are silicon dioxide, vegetable-source magnesium stearate and microcrystalline cellulose.
Sources & Further Reading
2 peer-reviewed sources, each linked to PubMed
- [1] Sood N, et al. Am J Clin Nutr. 2008;88(4):1167-75. PMID 18842808 — Effect of glucomannan on plasma lipid and glucose concentrations, body weight, and blood pressure: systematic review and meta-analysis. Pooling 14 randomized trials with 531 participants, glucomannan lowered total cholesterol by 19.3 mg/dL, LDL cholesterol by 16.0 mg/dL, triglycerides by 11.1 mg/dL, fasting glucose by 7.4 mg/dL and body weight by 0.79 kg.
- [2] Onakpoya I, et al. J Am Coll Nutr. 2014;33(1):70-8. PMID 24533610 — The efficacy of glucomannan supplementation in overweight and obesity: a systematic review and meta-analysis of randomized clinical trials. A meta-analysis of eight randomized trials found a non-significant difference in weight loss between glucomannan and placebo (mean difference -0.22 kg); adverse events included abdominal discomfort, diarrhea and constipation.
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