Grade: C

MEDIUM RISK

Jamieson Natural Sources

Item: Jamieson Natural Sources
Rating: 50
Author: SupplementChecker

Okay, here's the content for the Jamieson Natural Sources brand profile page on SupplementCheck, following the requested format: **** Jamieson Natural Sources is a supplement brand specializing in herbal products. The brand has a clean FDA record, with no warning letters, recalls, or adverse event reports. However, Jamieson Natural Sources lacks visible third-party testing certifications and GMP certification, and does not publish lab results. **

Jamieson Natural Sources Trust Summary

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

Jamieson Natural Sources 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 Jamieson Natural Sources Third-Party Tested?

No — Jamieson Natural Sources 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 Jamieson Natural Sources a Good Brand?

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

About Jamieson Natural Sources

Jamieson Natural Sources is a supplement brand in the dietary supplement industry. The company specializes in herbal extracts and botanical supplements. Jamieson Natural Sources has a trust score of 50/100 (Grade C), which may indicate areas for improvement in safety or transparency.

Product Specialization

Jamieson Natural Sources specializes in herbal and botanical supplements featuring traditional ingredients like turmeric, ashwagandha, ginkgo biloba, and other plant-based compounds. Their herbal line targets various wellness areas from stress management to cognitive support.

Testing & Certifications Explained

Jamieson Natural Sources does not appear to have third-party testing certifications from recognized organizations like NSF, USP, or Informed Sport. This means their supplements have not been independently verified for purity, potency, or banned substances. Consumers should be aware that ingredient quality and label accuracy are not externally validated.

How Jamieson Natural Sources Compares

In the broader supplement industry, Jamieson Natural Sources competes with both specialized and general nutrition brands. Their trust score of 50/100 shows room for improvement compared to industry leaders who typically maintain higher third-party certification standards and cleaner regulatory records.

Buying Guidance

Given Jamieson Natural Sources's lower trust score, consumers should exercise caution and consider alternatives with stronger safety records. If purchasing, verify ingredient sources, check for recent lab testing, and consult healthcare providers.

Frequently Asked Questions

Has Jamieson Natural Sources had any recalls?

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

Are Jamieson Natural Sources supplements third-party tested?

No — Jamieson Natural Sources 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 Jamieson Natural Sources safe?

Jamieson Natural Sources 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 Jamieson Natural Sources a good brand?

Jamieson Natural Sources 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: 4/4/2026.

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