Best Fiber Supplements Brands

3 brands ranked by trust score based on certifications, FDA record, and transparency.

3
Brands
53
Avg Score
0
NSF/USP Certified
3
No Testing

Top 3 Most Trusted

#1
Metamucil
Score: 70/100 (B+)

✓ Established brand — operating since 1934 (92 years)
#2
Benefiber
Score: 50/100 (C)
#3
Renew Life
Score: 40/100 (D)

✓ Established brand — operating since 1997 (29 years)

All Fiber Supplements Brands

70
Grade: B+

Metamucil

GMP

⚠ No third-party testing certifications found
50
Grade: C

Benefiber

GMP

⚠ No third-party testing certifications found
40
Grade: D

Renew Life

GMP

⚠ 2 product recall(s) on record