Grade: B+

MEDIUM RISK

Natren

Item: Natren
Rating: 70
Author: SupplementChecker

https://www.natren.com Est. 1982 (44 years)

Natren has a SupplementChecker.co trust score of 70/100, which equates to a grade of B+ and a MEDIUM risk level. Natren does not claim to be third-party tested. Established in 1982, Natren has a long history in the supplement industry and a clean FDA record, but consumers should be aware of the lack of third-party testing.

Natren Trust Summary

Trust Score: 70/100 (Good)
Grade: B+
Risk Level: MEDIUM
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 0
Years in Business: 44 years
GMP Certified: Yes

Natren has a trust score of 70/100 (Good). The brand is not third-party tested by NSF, USP, or Informed Sport, has no FDA recalls on record and no adverse event reports and has been in business for 44 years.

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Red Flags

⚠No third-party testing certifications found

Verified Strengths

✓Established brand — operating since 1982 (44 years)
✓Clean FDA record — no warnings, recalls, or significant adverse events

Certifications

GMP Certified

GMP certification ensures manufacturing quality standards are met, but does not verify that product contents match the label through independent testing. Look for NSF, USP, or Informed Sport certifications for third-party verified products.

FDA Record

FDA Warning Letters

Recalls

Adverse Reports

Clean record — no FDA warnings, recalls, or significant adverse events.

Is Natren Third-Party Tested?

No — Natren is not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. They do hold GMP certification, which ensures manufacturing quality but does not independently verify product contents. We recommend looking for brands with verified third-party testing for the highest confidence in product quality. See our guide to third-party tested supplements.

Is Natren a Good Brand?

Natren scores 70/100 (B+) — this is an average score. There may be room for improvement in testing transparency or certifications. Natren has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About Natren

Natren is an independent supplement company founded in 1982. Headquartered in the US, Natren develops and markets a range of probiotic supplements. With over 40 years in business, Natren is a well-established brand in the probiotics market.

Product Specialization

Natren specializes in probiotics. Their product line includes various probiotic formulations designed to support digestive health and overall wellness. They offer probiotics in different formats, such as capsules and powders, targeting specific health needs.

Testing & Certifications Explained

Natren is GMP certified, which means their manufacturing processes meet certain quality standards. However, Natren does not provide evidence of third-party testing. This means that an independent organization has not verified the contents or purity of Natren's products. Consumers seeking third-party tested supplements may want to consider other brands with more comprehensive testing programs. The question of "is Natren third-party tested?" is answered negatively.

How Natren Compares

Compared to competitors like Culturelle (trust score 82/100, third-party tested) and Garden of Life (trust score 75/100, third-party tested), Natren's trust score is lower, primarily due to the absence of third-party testing. Other brands such as Renew Life (trust score 65/100, not third-party tested) have similar limitations regarding independent verification. This information can help consumers make informed choices when considering "is Natren a good brand" relative to other options.

Buying Guidance

Given Natren's trust score and lack of third-party testing, consumers should carefully research individual products and consider their own risk tolerance. Purchase Natren products from reputable retailers to ensure authenticity. Always check the product label for ingredient information and potential allergens.

Frequently Asked Questions

Has Natren had any recalls?

No — as of 2026, Natren has zero FDA product recalls on record. They maintain a clean FDA record with no warning letters or significant adverse event reports. Natren received a trust score of 70/100 from SupplementChecker.

Are Natren supplements third-party tested?

No — Natren supplements are not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. They do have GMP (Good Manufacturing Practice) certification, which ensures manufacturing quality but does not independently verify product contents.

Is Natren safe?

Natren received a trust score of 70/100 (grade: B+, risk level: MEDIUM). This score is calculated from FDA records, third-party certifications, adverse event reports, and transparency practices. No FDA warnings or recalls are on record.

Is Natren a good brand?

Natren scores 70/100 (grade: B+) — this is an average score. There may be room for improvement in testing transparency or certifications. They do not currently hold third-party testing certifications like NSF, USP, or Informed Sport. No FDA warnings or recalls found.

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How We Calculated This Score

Every brand starts with a baseline score of 70/100.

Points added for: Third-party certifications (NSF +15, USP +15, Informed Sport +10), publishing lab results (+10), clean regulatory record (+10), 10+ years in business (+10), organic certification (+5).

Points deducted for: FDA warning letters (-25), product recalls (-20), high adverse events (-15), no third-party testing (-15), proprietary blends (-10), no GMP (-10).

Score is capped at 0-100. Grade and risk level are derived from the final score.

All data sourced from FDA.gov, Health Canada (LNHPD / recalls-rappels), NSF.org, USP.org, and publicly available brand information. Last updated: 4/9/2026.

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