Stool form and regularity
Vitafusion Fiber Well Sugar Free Fiber Supplement
A sugar-free gummy delivering fiber from polydextrose, an ingredient with mixed clinical results depending on dose and study design.
- Format
- Gummy, once a day
- Type
- Fiber
- Cost
- $0.27 a day
- Customer rating
- 4.5 out of 5 from 14,305 ratings from Amazon
What customers consistently report
- Tasting like candy despite being sugar-free
- Helping regularity without harsh effects
- A sugar-free formulation for daily fiber intake
Those are the themes that recur across the reviews. High review confidence — 14,305 Amazon ratings.
Why it might work
Polydextrose is a soluble fiber that can add bulk and be fermented in the colon, providing a reasonable route by which a daily fiber product might influence regularity. This sugar-free gummy makes that fiber easier to take than a powder for people who prefer a chewable routine. But the format limits how much it delivers: one serving supplies 5 g, below the 8 to 12 g daily amounts used in the polydextrose trials summarized in the evidence note. A gummy therefore cannot be assumed to match the fiber load of a powder, and this product has no trial of its finished formula. The clinical picture for polydextrose is mixed even at the higher study doses, so its mechanism should not be overstated. Ingredient disclosure and an appealing format do not settle effectiveness where polydextrose findings are mixed.
What the research supports
Polydextrose clinical evidence is inconsistent and dose-dependent. A placebo-controlled trial in 192 adults with functional constipation found 12 grams a day significantly increased weekly bowel movements. By contrast, a separate placebo-controlled trial in 128 chronically constipated adults found 8 to 12 grams a day did not significantly improve transit time, stool frequency, or consistency, though some symptom-scale subscores improved. This product’s 5-gram-per-serving dose is below the 8-to-12-gram doses tested in either trial, and no trial of this exact product was found.
What the label discloses
The label discloses the fiber source and amount per serving, but no individual milligram amounts for other ingredients and no third-party testing or certification claim were found. The product contains tree nuts as an allergen and is processed in a facility handling several others.
Who this tends to suit
We match this product to people reporting constipation and irregular bowel habits. It fits someone whose priority is regularity or a steady daily routine. Whether it is the best fit for you depends on the rest of your answers — what you have already tried, what format you will take, and anything that has to be ruled out.
Where it may not fit
The label supports gluten-free. A gummy only works if you will take it once a day, every day.
Side effects and what to be aware of
The most common complaint is that gummies melt or fuse together in shipping or storage, making the product unusable for some buyers. No pregnancy, breastfeeding, or drug-interaction warning is stated on the listing; the allergen line names tree nuts (coconut, from the coating) and a shared facility.
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Others we researched for the same job
These sit in the same role as Vitafusion Fiber Well Sugar Free Fiber Supplement — stool form and regularity — so they are the sensible things to weigh it against.
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Related reading
Background on how this type of product works, read from the trial evidence.