Grade: C

MEDIUM RISK

O Nutritions

Item: O Nutritions
Rating: 50
Author: SupplementChecker

O Nutritions has a SupplementChecker.co trust score of 50/100, which translates to a grade of C and a MEDIUM risk level. Notably, there are no third-party testing certifications on record for O Nutritions products. This means consumers have no independent verification of ingredient accuracy or purity, so it's difficult to say definitively if O Nutritions is a good brand.

O Nutritions Trust Summary

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

O Nutritions 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 O Nutritions Third-Party Tested?

No — O Nutritions 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 O Nutritions a Good Brand?

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

About O Nutritions

O Nutritions is a US-based supplement brand operating independently, meaning it is not part of a larger parent company. The founding date of O Nutritions is unknown. They offer a range of supplements in the health and wellness market.

Product Specialization

O Nutritions focuses primarily on protein supplements. This includes various protein powders, such as whey protein, casein protein, and plant-based protein options. They may also offer protein bars and other protein-enhanced snacks.

Testing & Certifications Explained

O Nutritions currently has no listed third-party certifications. This means that no independent organization has verified the quality, purity, or potency of their products. Third-party certifications, such as those from USP, NSF, or Informed-Sport, provide an extra layer of assurance for consumers. The absence of these certifications means consumers must rely solely on the brand's claims, without independent validation.

How O Nutritions Compares

Compared to brands like Transparent Labs (trust score 92/100) and Klean Athlete (trust score 88/100), which both boast extensive third-party testing and certifications, O Nutritions lags behind in transparency and verification. Optimum Nutrition, another competitor in the protein space (trust score 65/100), also has more visible quality control measures. These competitors invest heavily in earning consumer trust through rigorous testing and certifications.

Buying Guidance

Given O Nutritions' trust score and lack of third-party testing, consumers should exercise caution when considering their products. Purchase from reputable retailers and carefully examine product labels. Look for any available information on ingredient sourcing or manufacturing practices, and consider opting for brands with more robust third-party certifications for greater assurance.

Frequently Asked Questions

Has O Nutritions had any recalls?

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

Are O Nutritions supplements third-party tested?

No — O Nutritions 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 O Nutritions safe?

O Nutritions 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 O Nutritions a good brand?

O Nutritions 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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