Grade: C

MEDIUM RISK

NatureWorks

Item: NatureWorks
Rating: 50
Author: SupplementChecker

NatureWorks has a SupplementChecker.co trust score of 50/100, which is a Grade C and indicates MEDIUM risk. No third-party testing certifications were found for NatureWorks products. Consumers should carefully evaluate NatureWorks products before purchasing.

NatureWorks Trust Summary

Trust Score: 50/100 (Fair)
Grade: C
Risk Level: MEDIUM
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 1

NatureWorks 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 1 adverse event report.

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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

Is NatureWorks Third-Party Tested?

No — NatureWorks 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 NatureWorks a Good Brand?

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

About NatureWorks

NatureWorks is a US-based supplement brand operating independently. The founding date of NatureWorks is unknown. They produce and market various supplements.

Product Specialization

NatureWorks specializes in herbal supplements. Specific product types include herbal extracts and traditional herbal remedies.

Testing & Certifications Explained

There are no third-party testing certifications on record for NatureWorks. This means that independent organizations have not verified the quality, purity, or potency of NatureWorks' ingredients or finished products. Consumers cannot be certain that the products contain what the label claims or are free from contaminants based on third-party verification.

How NatureWorks Compares

Compared to competitors in the herbal supplement category, NatureWorks' trust score of 50/100 is lower than brands like Gaia Herbs (75/100) which has multiple certifications. Another competitor, NOW Foods (82/100), publishes lab results and has a strong third-party testing program. These competitors demonstrate a higher commitment to transparency and quality assurance than NatureWorks.

Buying Guidance

Given NatureWorks' trust score and lack of third-party testing, consumers should exercise caution. Purchase NatureWorks products directly from reputable retailers and carefully examine product labels. Look for any available information on ingredient sourcing or testing, even if not formally certified.

Frequently Asked Questions

Has NatureWorks had any recalls?

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

Are NatureWorks supplements third-party tested?

No — NatureWorks 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 NatureWorks safe?

NatureWorks 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 NatureWorks a good brand?

NatureWorks 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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