Grade: F

CRITICAL RISK

Mannatech

Item: Mannatech
Rating: 20
Author: SupplementChecker

The Mannatech trust score is 20/100, a grade of F, indicating a CRITICAL risk level for consumers. Mannatech does not appear to provide third-party tested supplements, as no certifications are currently visible. Consumers should be aware of a past FTC enforcement action related to deceptive health claims.

Mannatech Trust Summary

Trust Score: 20/100 (Poor)
Grade: F
Risk Level: CRITICAL
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 0
FTC Action: Yes

Mannatech has a trust score of 20/100 (Poor). The brand is not third-party tested by NSF, USP, or Informed Sport, has no FDA recalls on record and no adverse event reports.

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Red Flags

⚠Major FTC enforcement for deceptive health claims (2009)
⚠No third-party testing certifications found
⚠No GMP certification visible

Verified Strengths

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

Certifications

No certifications on record. This brand has not demonstrated GMP compliance or third-party testing verification.

FDA Record

FDA Warning Letters

Recalls

Adverse Reports

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

FTC Enforcement Action

FTC settlement for unsubstantiated disease treatment claims

Year: 2009 Type: Deceptive Health Claims Settlement: $7M

Is Mannatech Third-Party Tested?

No — Mannatech is not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. No GMP certification was found on record either. 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 Mannatech a Good Brand?

Mannatech scores 20/100 (F) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. Mannatech has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About Mannatech

Mannatech is a US-based company offering protein products. The founding date is unknown. Mannatech operates as an independent company.

Product Specialization

Mannatech specializes in protein products. Specific product types are not specified.

Testing & Certifications Explained

Mannatech does not appear to have any third-party certifications. This means that an independent organization has not verified the quality, purity, or potency of their products. Consumers cannot rely on a third party to confirm that the ingredients listed on the label are accurate or that the product is free from contaminants. The absence of third-party testing raises questions about product consistency and reliability.

How Mannatech Compares

Many supplement brands prioritize third-party testing and certifications to build consumer trust. For example, Klean Athlete (trust score 85/100) and NOW Foods (trust score 78/100) are known for their extensive testing and certifications. These brands demonstrate a commitment to quality and transparency that is not currently evident with Mannatech.

Buying Guidance

Given the low Mannatech trust score and lack of third-party certifications, consumers should exercise caution. If considering Mannatech products, research the specific product thoroughly and consult with a healthcare professional. Look for alternative brands that offer third-party tested supplements and greater transparency.

Frequently Asked Questions

Has Mannatech had any recalls?

No — as of 2026, Mannatech has zero FDA product recalls on record. They maintain a clean FDA record with no warning letters or significant adverse event reports. Mannatech received a trust score of 20/100 from SupplementChecker.

Are Mannatech supplements third-party tested?

No — Mannatech supplements are not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. No independent testing or GMP certification was found on record.

Is Mannatech safe?

Mannatech received a trust score of 20/100 (grade: F, risk level: CRITICAL). 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 Mannatech a good brand?

Mannatech scores 20/100 (grade: F) — this is below average. We recommend looking for brands with third-party certifications like NSF or USP. They do not currently hold third-party testing certifications like NSF, USP, or Informed Sport. No FDA warnings or recalls found.

Does Mannatech have any FTC enforcement actions?

Yes. FTC settlement for unsubstantiated disease treatment claims The settlement was $7M (2009). This significantly impacts their trust score.

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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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