Grade: C

MEDIUM RISK

American Metabolix

Item: American Metabolix
Rating: 50
Author: SupplementChecker

American Metabolix has a SupplementChecker.co trust score of 50/100, a grade of C, indicating a MEDIUM risk level. American Metabolix does not claim to offer third-party tested supplements. Consumers should carefully evaluate the brand's safety and quality practices before purchasing.

American Metabolix Trust Summary

Trust Score: 50/100 (Fair)
Grade: C
Risk Level: MEDIUM
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 0

American Metabolix has a trust score of 50/100 (Fair). 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

⚠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.

Is American Metabolix Third-Party Tested?

No — American Metabolix 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 American Metabolix a Good Brand?

American Metabolix scores 50/100 (C) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. American Metabolix has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About American Metabolix

American Metabolix is a supplement brand operating independently in the US. The founding date of American Metabolix is unknown. They offer a range of supplements and cater to the general sports nutrition market.

Product Specialization

American Metabolix specializes in protein supplements. They offer various protein powders and related products designed to support muscle growth and athletic performance.

Testing & Certifications Explained

American Metabolix does not have any visible third-party certifications. This means that their products are not independently tested or verified by organizations like NSF, Informed-Sport, or USP. Consumers should be aware that the absence of third-party testing means there is no independent assurance of product quality, purity, or label accuracy. This is a key factor when evaluating the brand's trustworthiness.

How American Metabolix Compares

Compared to brands like Optimum Nutrition (trust score 75/100) and Klean Athlete (trust score 90/100), which undergo rigorous third-party testing, American Metabolix's trust score of 50/100 is considerably lower. Garden of Life (trust score 82/100) also demonstrates a higher commitment to certifications and transparency. These competitors often provide consumers with greater assurance of product quality and safety.

Buying Guidance

Given American Metabolix's trust score and lack of third-party certifications, consumers should exercise caution. Purchase from reputable retailers and carefully review product labels and ingredients. Consider seeking advice from a healthcare professional before using American Metabolix products. Always read American Metabolix reviews from multiple sources.

Frequently Asked Questions

Has American Metabolix had any recalls?

No — as of 2026, American Metabolix has zero FDA product recalls on record. They maintain a clean FDA record with no warning letters or significant adverse event reports. American Metabolix received a trust score of 50/100 from SupplementChecker.

Are American Metabolix supplements third-party tested?

No — American Metabolix 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 American Metabolix safe?

American Metabolix received a trust score of 50/100 (grade: C, 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 American Metabolix a good brand?

American Metabolix scores 50/100 (grade: C) — 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.

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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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