Best Fiber Supplements Brands

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

#1
Metamucil
Score: 60/100 (B)

✓ Established brand — operating since 1934 (92 years)
#2
Renew Life
Score: 40/100 (D)

✓ Established brand — operating since 1997 (29 years)
#3
Benefiber
Score: 35/100 (D)

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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