Grade: C

MEDIUM RISK

Muscle Milk

Item: Muscle Milk
Rating: 50
Author: SupplementChecker

Muscle Milk has a Trust Score of 50/100, which is a Grade C and indicates MEDIUM risk. No third-party testing certifications were found for Muscle Milk products. Consumers wondering "is Muscle Milk third-party tested?" should note this lack of independent verification.

Muscle Milk Trust Summary

Trust Score: 50/100 (Fair)
Grade: C
Risk Level: MEDIUM
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 3

Muscle Milk 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 3 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

Is Muscle Milk Third-Party Tested?

No — Muscle Milk 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 Muscle Milk a Good Brand?

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

About Muscle Milk

Muscle Milk is a brand in the protein supplement category. The founding date is unknown. Muscle Milk is an independent company headquartered in the US.

Product Specialization

Muscle Milk specializes in protein products. They are known for protein powders and ready-to-drink protein shakes.

Testing & Certifications Explained

Muscle Milk does not appear to have any third-party testing certifications. This means that independent organizations are not verifying the quality, purity, or potency of their products. Consumers should be aware that the absence of certifications makes it more difficult to confirm that Muscle Milk products contain the ingredients listed on the label and are free from contaminants.

How Muscle Milk Compares

Compared to brands like Optimum Nutrition (Trust Score 75) and Transparent Labs (Trust Score 90), Muscle Milk's Trust Score is considerably lower. Optimum Nutrition has some third-party certifications, while Transparent Labs is fully third-party tested. Muscle Milk's lack of certifications puts it at a disadvantage compared to these competitors.

Buying Guidance

Given Muscle Milk's Trust Score, consumers should carefully evaluate whether the product meets their needs. Purchase from reputable retailers and carefully examine the product label. Consider exploring third-party tested supplements for greater assurance of quality.

Frequently Asked Questions

Has Muscle Milk had any recalls?

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

Are Muscle Milk supplements third-party tested?

No — Muscle Milk 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 Muscle Milk safe?

Muscle Milk 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 Muscle Milk a good brand?

Muscle Milk 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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