Stool form and regularity
Sandhus Nutrition Fiber+ Prebiotic Fiber Boost
A once-a-day unflavored powder with 11 g of fiber from resistant maltodextrin (Fibersol-2) and resistant potato starch (Solnul).
- Format
- Powder, once a day
- Type
- Fiber and prebiotic
- Cost
- $1.00 a day
- Customer rating
- 4 out of 5 from 143 ratings from Amazon
What customers consistently report
- No taste, so it disappears into any drink
- Dissolving without clumps or grit
- Feeling gentle on the stomach with a steadier routine
Those are the themes that recur across the reviews. Low review confidence — the brand’s 4.83 from 35 reviews has no verified buyers and predates the product page, Amazon’s independent 4.0 from 143 ratings may be pooled with other Sandhu’s products, and there is no Trustpilot profile or Better Business Bureau listing.
Why it might work
Fibersol-2 is a digestion-resistant maltodextrin, a soluble fiber that is only partly digested in the small intestine and is fermented in the colon; in the satiety trial 10 g with a meal delayed hunger and raised the hormones PYY and GLP-1. Solnul is a resistant potato starch that reaches the colon and is fermented by bacteria such as Bifidobacterium, and at 3.5 g it shifted those bacteria in healthy adults. Both are fermented fibers, so gas can rise as with other fibers. Neither is psyllium, which the constipation meta-analysis found effective, so the constipation evidence for fiber in general does not name these two. The label does not let you check how a given person’s bowels will respond.
What the research supports
No trial of Fiber+ was found. Its two ingredients have trials at the label dose: Solnul resistant potato starch at 3.5 g for four weeks in healthy adults increased Bifidobacterium and Akkermansia against placebo (75 randomized, funded by the ingredient maker), and Fibersol-2 at 10 g with one meal in 19 healthy adults increased satiety hormones for 1.5 to 2 hours. A meta-analysis of fiber for chronic constipation (16 trials, 1,251 adults) found the clearest effect above 10 g a day with psyllium and pectin, and this label gives 11 g from different fibers.
What the label discloses
The panel prints a gram amount for each of the two ingredients (10 g and 3.5 g) with no other ingredients, so there is no proprietary blend. The 13.5 g scoop lists 11 g of dietary fiber and the rest is not itemized. The brand states third-party testing for potency and purity and an NSF-audited GMP facility but names no laboratory. The brand-site rating of 4.83 comes from 35 reviews, none marked verified, all dated before the product page was created.
Who this tends to suit
We match this product to people reporting irregular bowel habits, constipation and bloating. It fits someone whose priority is regularity, a steady daily routine or day-to-day comfort. 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, dairy-free, vegan, no added sweeteners and minimal ingredient list. A powder only works if you will take it once a day, every day.
Side effects and what to be aware of
Reviews on the brand’s own page carry no complaints, but none are marked verified buyers; Amazon’s 4.0 includes 17% one-star ratings whose reasons could not be read, and Amazon’s summary text may pool other products from the same seller. The label carries no warning beyond the directions to avoid heat and to build up slowly if new to fiber, while the brand’s FAQ says it can go in baked recipes. The brand states a 90-day return window, Amazon lists the product as non-returnable, and the brand-site price is 50% above Amazon’s.
Common questions
Does Sandhus Fiber+ work?
No trial of Fiber+ was found. Its two ingredients have trials at the label dose: Solnul 3.5 g raised Bifidobacterium and Akkermansia in healthy adults over four weeks, and Fibersol-2 10 g with a meal increased satiety for 1.5 to 2 hours in 19 healthy adults. A review of fiber in chronic constipation found the clearest effect above 10 g a day with psyllium and pectin, and this product uses other fibers.
Is Sandhus Fiber+ safe, and does it have side effects?
The panel lists two ingredients with no other ingredients, and no pregnancy, medication or medical-condition warning was found on the label text read. The brand says to start slowly if you are new to fiber. The constipation meta-analysis found more flatulence with fiber supplements, and one trial of a related soluble corn fiber at 20 g a day reported more flatulence than the control.
How much does Sandhus Fiber+ cost?
The brand site sells one 30-serving bottle for $44.95 ($1.50 a day) and three for $130.85 ($1.45 a day each). Amazon lists the same product at $29.99 ($1.00 a day), or $26.99 on Subscribe & Save.
How much fiber is in Fiber+, and what is it made of?
One 13.5 g scoop has 11 g of dietary fiber (39% of the daily value): 10 g of Fibersol-2, a digestion-resistant maltodextrin from corn, and 3.5 g of Solnul resistant potato starch. There are no other ingredients, no sweetener and no flavor. For comparison, a meta-analysis found fiber’s effect on constipation clearest above 10 g a day.
Can I return Sandhus Fiber+?
The brand’s returns page offers a refund or replacement within 90 days of the order, with proof of receipt. Amazon lists the product as non-returnable. No Trustpilot profile or Better Business Bureau listing was found to check how refunds go in practice.
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Related reading
Background on how this type of product works, read from the trial evidence.