Nature's Way Glucomannan 1,995 mg Review
#3 of 8 · Best Premium Clean Label✓ Label verified · Supplement Facts read Oct 6, 2026Real retailer photo, cut out. Label unedited.
Buy it if you want the shortest ingredient list and the clearest warning. This is the capsule for people who read the other-ingredients line first.
$12-14~$0.38 per 3-capsule serving (1.995 g)
Why It Scores 8.6 — And The Label Line Behind Each Number
Dose vs the Trials
30% of score1.995 g of declared glucomannan per serving before mealtime matches the studied dose; the label does not say how many times a day.
- Per serving
- 1.995 g glucomannan (from Amorphophallus konjac root)
Label Directions & Safety
20% of scoreA full glass of water, 20 minutes before mealtime, and the most detailed choking and swallowing warning of the eight.
- Directions
- 3 capsules with at least 8 oz. (full glass) of water about 20 minutes before mealtime
Testing & Manufacturing
20% of scoreNon-GMO Project Verified, an independent programme, but no third-party purity or potency statement on the panel image.
- Seals
- Non-GMO Project Verified, vegan, gluten-free, dairy-free
Formulation & Form
15% of scorePlant-derived hypromellose capsule and magnesium stearate only; vegan, gluten-free and dairy-free. The panel notes it contains sulfites.
- Form
- Vegan capsule (hypromellose)
- Other ingredients
- Plant-derived capsule (hypromellose), magnesium stearate; contains sulfites
Value
15% of scoreAbout $0.38 per serving and 33 servings a bottle, the dearest of the plain capsules per gram.
- Serving
- 3 capsules
- Count
- 100 capsules (33 servings)
- Cost per dose
- ~$0.38 per serving
Label verified. Every figure read from the Supplement Facts photo, Oct 6, 2026.
Marketing Claims Vs. Reality
1,995 mg per 3 capsule serving.
The panel declares 1.995 g of glucomannan per three capsules.
Promotes feelings of fullness.
The swelling mechanism is real, but the 2013 Rush University trial found no change in hunger or fullness ratings versus placebo (Keithley 2013).
Vegan, Non-GMO Project Verified.
Both marks appear on the listing's label graphic; the capsule is hypromellose.
What Our Test Actually Found
One excipient, one caveat
Glucomannan plus magnesium stearate in a plant capsule is as short as a capsule formula gets. The panel's sulfite statement is the detail to notice if you react to them.
Small bottle, premium price
A hundred capsules is 33 servings. Per gram it costs more than NOW, Carlyle or Nutricost, and more than twice the Best Naturals two-pack.
Full analysis: all pros & cons (7), buy if / skip if
- 1.995 g of declared glucomannan per serving
- Only one excipient, vegan capsule
- Non-GMO Project Verified
- Most complete choking warning
- Contains sulfites
- No testing statement on the panel
- Only 33 servings a bottle
- You want a vegan capsule with one excipient
- You value Non-GMO Project verification
- You want the most complete safety wording
- You are sensitive to sulfites; the panel says it contains them
- You want a third-party testing statement
- You want the best price per gram
This is the capsule for people who read the other-ingredients line first. It is vegan, Non-GMO Project Verified and dairy-free, with a single excipient and a serving that matches the studied dose. What it lacks is a testing statement on the label and volume: 33 servings cost about what 60 cost elsewhere.
Nature's Way keeps the formula short: glucomannan from konjac root, a plant-derived hypromellose capsule and magnesium stearate. Three capsules give 1.995 g, taken with at least 8 oz. of water about 20 minutes before mealtime. The warning is the most thorough here, naming the throat and esophagus, telling you not to use it if you have difficulty swallowing and to seek medical attention for chest pain or vomiting. The panel also states that it contains sulfites. The bottle holds 100 capsules, 33 servings.
The clean-label capsule, at a clean-label price
Nature's Way gets the dose, the directions and the warning right and adds almost nothing to the fiber. You pay for that in bottle size. If the ingredient list is your first filter, buy it; if value is, NOW or Best Naturals gives you the same grams for less.
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.
04Best Naturals 2-Pack
If you already know glucomannan agrees with you and want months of it cheaply, this two-pack is the sensible purchase.
Quick Answers
Does Nature's Way Glucomannan contain sulfites?
Yes. The panel states that it contains sulfites, alongside a plant-derived hypromellose capsule and magnesium stearate.
When should I take Nature's Way Glucomannan?
The label says three capsules with at least 8 oz. of water or other liquid about 20 minutes before mealtime. Do not take it without enough liquid or if you have difficulty swallowing.
Sources & Further Reading
2 peer-reviewed sources, each linked to PubMed
- [1] Keithley JK, et al. J Obes. 2013;2013:610908. PMID 24490058 — Safety and efficacy of glucomannan for weight loss in overweight and moderately obese adults. In 53 overweight and moderately obese adults, 1.33 g of glucomannan with 8 oz of water one hour before each meal for eight weeks was well tolerated but produced no more weight loss than placebo and did not change body composition, hunger or fullness.
- [2] Henry DA, et al. Br Med J (Clin Res Ed). 1986;292(6520):591-2. PMID 3004635 — Glucomannan and risk of oesophageal obstruction. A British Medical Journal report on the risk of oesophageal obstruction with glucomannan, the reason labels now tell users to take it with plenty of water.
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