Best Fiber Supplements Brands
Last updated:
3 brands ranked by trust score based on certifications, FDA record, and transparency.
3
Brands
45
Avg Score
0
NSF/USP Certified
3
No Testing
Top 3 most trusted fiber supplements
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#1
GMP
✓ Established brand — operating since 1934 (92 years)
#2
GMP
✓ Established brand — operating since 1997 (29 years)
#3
All Fiber Supplements Brands
60
Grade: B
Metamucil
GMP
⚠ No third-party testing certifications found
40
Grade: D
Renew Life
GMP
⚠ 2 product recall(s) on record
35
Grade: D
Benefiber
GMP
⚠ High number of FDA adverse event reports (122)
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