Grade: C

MEDIUM RISK

Rule One Proteins

Item: Rule One Proteins
Rating: 58
Author: SupplementChecker

Okay, here's the content for the Rule One Proteins brand profile page on SupplementCheck: **** Rule One Proteins is a supplement brand known for its range of protein powders and other sports nutrition products. The brand is Informed Choice certified, indicating monthly batch testing for banned substances. However, Rule One Proteins does not publish lab results and lacks GMP certification, and no third-party testing certifications were found. The brand has a clean FDA record with no warning letters, recalls, or adverse event reports. **

Rule One Proteins Trust Summary

Trust Score: 58/100 (Fair)
Grade: C
Risk Level: MEDIUM
Third-Party Tested: Yes (Informed Choice)
FDA Recalls: 0
Adverse Events: 0

Rule One Proteins has a trust score of 58/100 (Fair). The brand is third-party tested by Informed Choice, has no FDA recalls on record and no adverse event reports.

Where to Buy Rule One Proteins

Purchase from trusted retailers. We may earn a commission at no extra cost to you.

Buy on iHerb Buy on Amazon

Check another brand:

e.g. Nature Made, Thorne, NOW Foods...

Check

Red Flags

⚠No third-party testing certifications found
⚠No GMP certification visible

Verified Strengths

✓Informed Choice certified — monthly batch testing
✓Clean FDA record — no warnings, recalls, or significant adverse events

Certifications

Informed Choice

Third-party testing means an independent laboratory has verified this product's contents, purity, and potency match what's on the label.

FDA Record

FDA Warning Letters

Recalls

Adverse Reports

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

Is Rule One Proteins Third-Party Tested?

Yes — Rule One Proteins is Not third-party tested. This means an independent laboratory has verified that the products' contents, purity, and potency match their label claims.

Is Rule One Proteins a Good Brand?

Rule One Proteins scores 58/100 (C) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. Rule One Proteins has a clean FDA record with no warnings or recalls. The brand holds third-party certifications (Not third-party tested), which is a strong quality indicator.

About Rule One Proteins

Rule One Proteins is a supplement brand in the dietary supplement industry. Rule One Proteins has a trust score of 58/100 (Grade C), which may indicate areas for improvement in safety or transparency.

Product Specialization

Rule One Proteins focuses on Supplements supplements. Their product line is designed to meet specific health and wellness needs within these categories, offering targeted nutritional support for various consumer goals.

Testing & Certifications Explained

Rule One Proteins 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 Rule One Proteins Compares

In the broader supplement industry, Rule One Proteins competes with both specialized and general nutrition brands. Their trust score of 58/100 shows room for improvement compared to industry leaders who typically maintain higher third-party certification standards and cleaner regulatory records.

Buying Guidance

Given Rule One Proteins'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 Rule One Proteins had any recalls?

No — as of 2026, Rule One Proteins has zero FDA product recalls on record. They maintain a clean FDA record with no warning letters or significant adverse event reports. Rule One Proteins received a trust score of 58/100 from SupplementChecker.

Are Rule One Proteins supplements third-party tested?

Yes — Rule One Proteins supplements are third-party tested. They hold the following certifications: Informed Choice. Third-party testing means an independent lab has verified the product's contents, purity, and potency match the label claims.

Is Rule One Proteins safe?

Rule One Proteins received a trust score of 58/100 (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 Rule One Proteins a good brand?

Rule One Proteins scores 58/100 (grade: C) — this is below average. We recommend looking for brands with third-party certifications like NSF or USP. They hold third-party certifications (Not third-party tested), which is a strong indicator of product quality. No FDA warnings or recalls found.

Compare Similar Brands

Brands in similar categories with comparable trust profiles. Compare certifications, scores, and safety records.

70/100

Lower rated

Planetary Herbals

Grade B+ • Higher score

70/100

Lower rated

Innate Response Formulas

Grade B+ • Higher score

70/100

Lower rated

Perfect Keto

Grade B+ • Higher score

70/100

Lower rated

mindbodygreen (mbg)

Grade B+ • Higher score

70/100

Lower rated

DHC

Grade B+ • Higher score

Want more comparisons? Browse our supplement categories or check our buying guides.

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.

Promote Your Trust Score

Embed this badge on your site — it displays Rule One Proteins's verified trust score and links back to this profile page. Helps show buyers you're transparent about third-party testing.

Small · 220×110

<iframe src="https://supplementchecker.co/embed/rule-one-proteins/" width="220" height="110" frameborder="0" loading="lazy" title="Rule One Proteins trust score by SupplementChecker"></iframe>

Medium · 320×160

<iframe src="https://supplementchecker.co/embed/rule-one-proteins/" width="320" height="160" frameborder="0" loading="lazy" title="Rule One Proteins trust score by SupplementChecker"></iframe>

Large · 420×210

<iframe src="https://supplementchecker.co/embed/rule-one-proteins/" width="420" height="210" frameborder="0" loading="lazy" title="Rule One Proteins trust score by SupplementChecker"></iframe>

Paste the snippet anywhere on your site. The badge updates automatically when Rule One Proteins's trust score changes.

Want to find supplements you can trust?

Third-party testing is the single best indicator of supplement quality. We analyzed Rule One Proteins and 500+ other brands to find the ones that actually prove what's on the label.

See the best third-party tested supplements →