Costco Sued Over Orgain Protein Powder: Lead, Cadmium & Arsenic Lawsuit Explained (July 2026)
Direct Answer: What is the Costco Orgain lawsuit?
On July 7, 2026, seven consumers filed a proposed class action against Costco alleging its Orgain Organic Protein Powder contains undisclosed lead, cadmium and arsenic. Independent testing cited in the complaint reports lead up to 67 ppb (alleged >600% over the Prop 65 threshold). There is no recall, Orgain says its products are safe, and the allegations are unproven. If you want to minimize exposure, third-party certified options are the more conservative choice — jump to safer picks →
Costco is now the latest name in the protein heavy-metals wave. A proposed class action filed in Seattle federal court accuses the retailer of selling Orgain Organic Protein Powder — marketed as "clean" and "high quality" — while never disclosing that laboratory testing can detect toxic heavy metals in it.
Costco Orgain Class Action: Case Details
Defendant: Costco Wholesale Corporation
Court: U.S. District Court, Western District of Washington (Seattle)
Judge: Hon. Kymberly K. Evanson
Filed: July 7, 2026
Plaintiffs: Seven named consumers
Plaintiffs' firm: Hagens Berman
Product: Orgain Organic Protein Powder (Vanilla Bean, Creamy Chocolate Fudge cited)
Metals alleged: Lead (up to 67 ppb), cadmium (up to 70.3 ppb), arsenic (up to 19.8 ppb)
Proposed classes: WA, CA, IL, MN, OH, TX
Claims: Consumer protection & false advertising violations; failure to disclose
Relief sought: Damages; injunction to disclose metal levels or stop sales; jury trial
What the Lawsuit Alleges
The core legal theory is not that anyone was poisoned. None of the seven plaintiffs claim a specific physical injury. Instead, this is an omission and deception case: that Costco marketed the powder as clean, high quality and nutritious, charged a premium for it, and never disclosed that lab testing could detect heavy metals buyers say they would never knowingly accept.
What Costco Advertised vs. What Testing Found
What the product pages promoted (per the complaint):
- "Quality ingredients, higher standards"
- "Good, clean fuel" / "delivering clean nutrition"
- Prominent "USDA Organic" seal (implies purity to shoppers)
What testing cited in the complaint reports:
- Lead up to 67 ppb (alleged >600% over Prop 65 threshold)
- Cadmium up to 70.3 ppb
- Arsenic up to 19.8 ppb
The plaintiffs argue a reasonable shopper cannot detect these metals without expensive lab equipment — so the duty to disclose fell on the retailer.
The Testing Numbers — and What They Actually Mean
This is where a lot of the coverage gets fuzzy, so let's be precise. The complaint leans on three testing sources: the plaintiffs' own commissioned lab testing, Consumer Reports (October 2025 round), and the Clean Label Project.
| Measure | Reported Figure | Context |
|---|---|---|
| Lead (independent testing) | up to 67 ppb | Alleged >600% over the Prop 65 lead threshold |
| Cadmium (independent testing) | up to 70.3 ppb | Detected in affected samples |
| Arsenic (independent testing) | up to 19.8 ppb | Detected in affected samples |
| Lead (Consumer Reports, Oct 2025) | 143% of "level of concern" | Vanilla Bean rated "okay to eat occasionally" (~4 servings/week cap) |
Reading "600% over the limit" correctly
That figure refers to California's Proposition 65 Maximum Allowable Dose Level for lead — 0.5 micrograms per day. Prop 65 is a warning-label threshold, not a "this will hurt you today" line. A product can exceed it and still be legal to sell — the requirement is a warning, not removal. That is the gap the plaintiffs point at: in California a Prop 65 warning is common, but the complaint alleges none appeared, and in states like Washington no blanket in-store warning is posted.
Consumer Reports uses its own benchmark (0.5 µg of lead per day as its level of concern), which is why "143% of the level of concern" and "600% over Prop 65" can describe the same product using two different yardsticks. Both are conservative daily-exposure references — not acute-toxicity thresholds.
Important nuance: "No known safe level of lead" is true — and it is also true of many everyday foods, including spinach, sweet potatoes and dark chocolate. The real question for a daily protein user is not "is there any lead?" but "how much am I adding, how often, and can I choose a lower-tested option?"
Why Organic Plant Protein Keeps Showing Up in These Cases
If you have read our lead-in-protein-powder rankings, this pattern will not surprise you. Plants pull minerals — and heavy metals — up from soil. Pea, rice and other plant proteins concentrate whatever the growing soil contained, and "organic" certification governs pesticides and farming practices, not heavy-metal content. That is the uncomfortable irony at the center of this case: the USDA Organic seal that signals "clean" to shoppers has nothing to do with lead, cadmium or arsenic.
The complaint cites the same core Consumer Reports finding we have written about before: lead in plant-based protein powders averaged roughly nine times higher than in dairy (whey) proteins, and about twice the level found in beef-based proteins. See our full heavy-metals report and the January 2026 Consumer Reports round for the underlying data.
This is bigger than one brand
The Orgain/Costco suit is the latest in a wave. It follows the Garden of Life lead class action, the Jocko Fuel lawsuit, ongoing scrutiny of RTD shakes, and California's proposed SB 1033 heavy-metal testing bill. The through-line is consistent: plant and organic proteins, and undisclosed metals.
What Orgain and Costco Have Said
Orgain pushed back in a July 9, 2026 statement, saying its products are safe to consume and that while trace amounts of naturally occurring substances can appear in plant-based ingredients, its products comply with applicable food-safety standards and guidance. Costco, per multiple outlets, had not responded to press requests at the time of filing.
A lawsuit is an accusation, not a verdict. What this case does is pull testing data into public view — and force the "does organic mean clean?" question our readers have been asking for months.
Should You Stop Using Orgain? A Calm, Honest Answer
We are not going to tell you to panic, and we are not going to tell you it is nothing. Here is the balanced read:
- If you use Orgain occasionally (a few times a week), the reported levels put it in Consumer Reports' "okay to eat occasionally" tier — a "don't make it your daily driver" signal, not an emergency.
- If you use it daily — especially if you are pregnant, nursing, feeding kids, or stacking multiple plant-based supplements — the conservative move is to switch to a third-party certified option. See our pregnancy-safe guide and kids & teens guide.
- If you want zero guesswork, the cleanest label signal is an independent certification mark — NSF Certified for Sport, Informed Sport, or Clean Label Project Certified. These programs test for heavy metals; USDA Organic does not.
Safer, Certified Alternatives to Orgain
Based on Consumer Reports' October 2025 and January 2026 rounds plus current third-party certification databases, these are the lower-heavy-metal options we would point an Orgain user toward. The pattern is consistent: certified whey tests lowest; certified plant options exist but are fewer.
Certified Whey — Lowest Heavy-Metal Tier
1. Dymatize ISO100 (Hydrolyzed Whey Isolate)
- Certifications: NSF Certified for Sport, Informed Choice
- Our most-referenced clean whey — strongest certification stack
- Buy on Amazon · Read our full safety analysis
2. Optimum Nutrition Gold Standard 100% Whey
- Widely available, consistently reasonable independent results
- Budget-friendly per serving (~$0.75/serving)
- Buy on Amazon · See our testing write-up
Prefer Plant-Based? Start Here First
Honest note: verified-clean plant options are genuinely scarcer than whey. We will not pad this list to look bigger than the data supports.
OWYN Pro Elite (Plant-Based)
- The only plant protein Consumer Reports verified safe for daily use (of 15 tested)
- Lead below detection; NSF Certified for Sport; 25g protein/serving
- Buy on Amazon · Read our OWYN safety analysis
Not sure what to grab on your next Costco run?
We break down the cleanest warehouse options — and what to skip.
Best & safest protein at Costco →The Regulatory Backdrop: Why This Keeps Happening
Protein powders are regulated as dietary supplements, which means the FDA does not review, approve or routinely test them before they reach shelves. Manufacturers self-certify safety and labeling. That structural gap — which the complaint leans on heavily — is exactly why third-party testing and certification programs exist, and why this site is built around them.
Two things are now moving that could reshape the landscape:
- California SB 1033 would mandate heavy-metal testing and public disclosure for protein products. It cleared a key committee in April 2026 — we are tracking it here.
- Broader industry scrutiny of heavy metals in supplements continues to build, signaling this is not a one-retailer story.
Lawsuit FAQ
Q: Is Orgain protein powder being recalled?
A: No. As of July 2026 there is no recall. This is a civil class action alleging undisclosed heavy metals — a very different thing from an FDA recall. Orgain says its products comply with food-safety standards, and the allegations remain unproven.
Q: How much lead was found in Orgain protein powder?
A: The complaint cites independent testing of Orgain Vanilla Bean at up to 67 ppb lead, plus cadmium up to 70.3 ppb and arsenic up to 19.8 ppb. Separately, Consumer Reports' October 2025 round flagged Orgain Vanilla Bean at 143% of its level of concern for lead and rated it "okay to eat occasionally."
Q: Does USDA Organic mean no heavy metals?
A: No — and that is central to this case. USDA Organic governs farming and pesticide practices, not heavy-metal content. Plants can absorb lead, cadmium and arsenic from soil regardless of organic status.
Q: What protein powders are lowest in heavy metals?
A: Consumer Reports found dairy (whey) and beef proteins averaged dramatically lower lead than plant and organic proteins. Certified whey like Dymatize ISO100 and ON Gold Standard — plus certified plant picks like OWYN — tend to test lowest. Look for NSF Certified for Sport, Informed Sport, or Clean Label Project marks.
Q: Am I part of the class action if I bought Orgain at Costco?
A: Possibly, if you are in one of the proposed classes (WA, CA, IL, MN, OH, TX) and purchased an affected product — but classes are not certified yet, and eligibility is a legal question for the court and the plaintiffs' firm, not for us. We are not attorneys and this is not legal advice.
The Bottom Line
Costco faces a proposed class action for allegedly failing to disclose heavy metals in Orgain Organic Protein Powder. Testing cited in the complaint reports lead up to 67 ppb, alongside cadmium and arsenic, while the product is marketed as clean and organic. The allegations are unproven and there is no recall — but if you use it daily, the conservative move is a third-party certified option like Dymatize ISO100, ON Gold Standard, or (for plant-based) OWYN Pro Elite.
Sources:
- Hagens Berman, "Consumer Lawsuit Against Costco Alleges Toxic Heavy Metals in Orgain Protein Supplements" (press release & case page), July 7, 2026.
- Courthouse News Service, "Costco accused of selling protein powder contaminated with lead, arsenic," July 2026.
- Fox Business / FOX 13 Seattle, "Costco hit with lawsuit alleging protein powder... lead, arsenic," July 2026 (includes Orgain's July 9 statement).
- Newsweek, "Costco Shoppers Sue Over Protein Powder — Should You Stop Using It?", July 2026.
- Consumer Reports protein powder testing, October 2025 and January 2026 rounds.
Last Updated: July 9, 2026
Legal Disclaimer: This article is for informational purposes only and does not constitute legal advice. We are not involved in the Costco/Orgain class action and cannot provide information about joining the lawsuit or claim eligibility. For legal questions, consult a qualified attorney. Product recommendations are based on independent third-party testing and certification data.
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