Verified
“1,995 mg per 3 capsule serving.”
The panel declares 1.995 g of glucomannan per three capsules.
Nature's Way Glucomannan 1,995 mg Review
SAC StudioBest Premium Clean LabelBUY
8.6/10SAC Product Score™
How the score breaks downHide breakdown
SAC Product Score™ — how it breaks down
- Dose vs the Trials30%8.8
- Label Directions & Safety20%9.4
- Testing & Manufacturing20%7.8
- Formulation & Form15%8.8
- Value15%7.8
Buy it if you want the shortest ingredient list and the clearest warning
✓ Buy if…
- You want a vegan capsule with one excipient
- You value Non-GMO Project verification
✗ Skip if…
- You are sensitive to sulfites; the panel says it contains them
- You want a third-party testing statement
Read the full analysis
✓ Also buy if…
- You want the most complete safety wording
✗ Also skip if…
- You want the best price per gram
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.
How we built the SAC Product Score™ — 8.6/10
Dose vs the Trials30%8.8/10
1.995 g of declared glucomannan per serving before mealtime matches the studied dose; the label does not say how many times a day.
Label Directions & Safety20%9.4/10
A full glass of water, 20 minutes before mealtime, and the most detailed choking and swallowing warning of the eight.
Testing & Manufacturing20%7.8/10
Non-GMO Project Verified, an independent programme, but no third-party purity or potency statement on the panel image.
Formulation & Form15%8.8/10
Plant-derived hypromellose capsule and magnesium stearate only; vegan, gluten-free and dairy-free. The panel notes it contains sulfites.
Value15%7.8/10
About $0.38 per serving and 33 servings a bottle, the dearest of the plain capsules per gram.
The product at a glance
- Form
- Vegan capsule (hypromellose)
- Serving
- 3 capsules
- Count
- 100 capsules (33 servings)
- Per serving
- 1.995 g glucomannan (from Amorphophallus konjac root)
- Directions
- 3 capsules with at least 8 oz. (full glass) of water about 20 minutes before mealtime
- Other ingredients
- Plant-derived capsule (hypromellose), magnesium stearate; contains sulfites
- Seals
- Non-GMO Project Verified, vegan, gluten-free, dairy-free
- Cost per dose
- ~$0.38 per serving
Marketing claims vs. reality
Partial
“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).
Verified
“Vegan, Non-GMO Project Verified.”
Both marks appear on the listing's label graphic; the capsule is hypromellose.
What our test actually found
01One 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.
02Small 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.
Pros & cons, no sugar-coating
Pros
- 1.995 g of declared glucomannan per serving
- Only one excipient, vegan capsule
- Non-GMO Project Verified
- Most complete choking warning
Cons
- Contains sulfites
- No testing statement on the panel
- Only 33 servings a bottle
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.
Affiliate link — Super Achiever Club earns a small commission at no extra cost to you.
If this doesn’t fit — try these
NOW Glucomannan 575 mg
8.8/101.725 g of glucomannan per three vegetarian capsules, taken once or twice a day before a meal, with the water rule, the timing and the choking caution all printed on the bottle.
See it on the list →NOW Glucomannan Pure Powder
8.7/10Nothing but glucomannan: 2 g per half teaspoon, about 114 servings a jar, at half the cost per gram of any capsule here. It has to be measured, stirred and drunk before it gels.
See it on the list →Best Naturals Konjac Root
8.5/10Two bottles of 180 vegetarian capsules, 2,000 mg of konjac root glucomannan per three, third-party lab tested per the label, with the water rule and choking caution printed; a once-a-day direction and a sloppy listing graphic hold it back.
See it on the list →Sources & further reading
- Keithley JK, et al. J Obes. 2013;2013:610908.Keithley JK, Swanson B, Mikolaitis SL, DeMeo M, Zeller JM, Fogg L, Adamji J · 2013 · Journal of Obesity · 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.
- Henry DA, et al. Br Med J (Clin Res Ed). 1986;292(6520):591-2.Henry DA, Mitchell AS, Aylward J, Fung MT, McEwen J, Rohan A · 1986 · British Medical Journal (Clinical Research Edition) · 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.