Lead Found in Popular Protein Shakes, Consumer Reports Finds
Consumer Reports released a report today revealing detectable levels of lead in several popular protein powders and shakes, prompting health concerns and calls for greater transparency in the supplement industry.
The report, published October 30, 2025, tested a range of protein products and found that many contained lead levels exceeding California’s Proposition 65, which sets a significantly lower maximum allowable dose than federal guidance. While the Food and Drug Administration’s interim reference level for lead is 8.8 micrograms per day, California’s limit is 0.5 micrograms per day. The findings raise questions about the safety of long-term protein supplement use, particularly for frequent consumers.
Registered Dietitian Kristy Del Coro explained that while no amount of lead is considered safe, “the greatest health risk will come from repeated or continuous exposure at high doses.” She recommends consumers seek out brands with NSF Certified for Sport certification or confirm third-party testing for heavy metals. Concerns about heavy metal contamination in supplements have been growing, and this report adds to the urgency for stricter regulation and testing. For more information on supplement safety, visit the Food and Drug Administration’s website.
Several brands tested, including OWYN, Slate, and Muscle Milk, were flagged for concerning levels of lead or undesirable aftertastes. Other brands, like Koia, Remedy Organics, Ripple, and Oikos, received more favorable reviews based on taste and ingredient profiles, though the report emphasized the importance of independent verification of heavy metal content across all brands. You can read more about choosing the right protein shake here.
Officials at Consumer Reports stated they will continue to monitor protein products and advocate for stricter regulations to protect consumers, and encourage individuals to research brands and prioritize third-party testing when selecting supplements.
