Likely Safe Medium confidence

THORNE FiberMend: Gluten-Free Prebiotic Fiber Powder for Regularity and GI Balance (11.6 oz)

THORNE ★★★★☆ 4.3 · 1,117 reviews

Gluten-free labeling is present, but there are no listed third-party certifications and cross-contact information is not provided. Interpret with caution for celiac patients given some reported GI symptoms.

🌾 Gluten-free labeled ⚠ No 3rd-party cert
$45.00
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Celiac verdict
Likely safe
Confidence
Medium
Type
Supplements
Size
11.6 ounce (pack of 1)
Price tier
Premium
Read
5 min
✅ Why it works
  • Tasteless flavor and good mixability
  • Reported support for regularity and GI function
  • Gluten-free labeling
  • Strong rating and longevity on Amazon
⚠ Keep in mind
  • Premium price with mixed value perception
  • Potential GI side effects for some users
  • Some reports of poor solubility

Gluten safety details

Labeled gluten-free
Yes
Certifications
None documented
Ingredient risks
None found
Cross-contact notes
Not specified in provided data

Gluten-free labeling is present, but there are no listed third-party certifications and cross-contact information is not provided. Interpret with caution for celiac patients given some reported GI symptoms.

Cross-contact or facility details not disclosed Some users report GI symptoms such as stomach discomfort or itching No independent testing or certifications evidenced in the provided data

What to expect

A soluble prebiotic fiber powder that blends into drinks or smoothies with minimal flavor. Users may experience improved regularity, though a subset reports GI side effects. It is a premium-priced gluten-free option with no listed certifications in the data provided.

👍 Best for
  • Consumers seeking a gluten-free prebiotic fiber to support regularity and GI flora
  • Buyers wanting a tasteless, easily mixable fiber powder for smoothies or beverages
👎 Not ideal for
  • Budget-conscious shoppers seeking lower-cost fiber options
  • Consumers who are sensitive to GI side effects or who are concerned about potential itchiness or stomach discomfort
  • Shoppers requiring explicit third-party certifications

The full guide

What FiberMend is and who makes it

FiberMend is a gluten-free prebiotic fiber powder marketed by THORNE Store to support regularity and balanced GI flora. The product comes in an 11.6 oz container and is priced at $45. It is labeled gluten-free, and it has a strong Amazon rating (4.3/5 from 1,117 reviews) based on the data; however, there are no listed third-party certifications in the provided data.

Taste, texture, and mixability

Customers frequently praise its tasteless flavor and easy mixability, which can help it blend into drinks or smoothies without altering taste. Some buyers report drawbacks, including the premium price, occasional GI discomfort or itching, and at least one note that solubility is very poor.

Gluten safety and certifications

Gluten-free labeling is present in the product data. No explicit third-party gluten-free certifications are listed; cross-contact details are not provided, so individuals with celiac disease may wish to verify compatibility with their standards before use.

Ideal user profile and caveats

Best for consumers seeking a gluten-free prebiotic fiber to support regularity and GI flora, and who want a tasteless powder that mixes easily. Not ideal for budget-conscious shoppers or those who are sensitive to GI side effects or who require explicit third-party certifications.

Use, value, and practical considerations

Use FiberMend as a soluble prebiotic fiber that blends into beverages or smoothies with minimal flavor impact. It is intended to support regularity and GI balance, according to product messaging. With a premium price tag, buyers should weigh perceived quality and convenience against cost, and compare with other gluten-free fiber options in the market.

What shoppers say

💚 People liked

⚠ People flagged

High price / perceived value concerns
Some users experience stomach discomfort or itching
A minority report poor solubility

Key takeaways

  • If you want tasteless, easy-to-mix gluten-free prebiotic fiber, FiberMend is a strong option.
  • Be mindful of price and potential GI side effects.
  • Look for third-party certifications if that matters to you.
How we assess this: Gluto summarizes manufacturer labeling, listing data, and community signals — it is not a medical guarantee. Always read the current label and confirm with the manufacturer before purchase, especially for celiac disease.

Evidence gaps for this product:
  • Ingredient list not provided in the supplied data
  • No explicit third-party gluten-free certifications listed
  • Cross-contact or facility-sharing details not disclosed
  • Independent lab testing or certifications not evidenced in provided data
Likely Safe THORNE FiberMend: Gluten-Free Prebiotic Fiber Powder for Regularity and GI Balance (11.6 oz) $45.00
Buy on Amazon →