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A new Consumer Reports study reveals high lead contamination in many protein powders and shakes. Discover which types are riskier and how to choose safer options for your health.
New Study Finds Troubling Lead Levels in Protein Supplements
Protein powders have become a household staple for fitness lovers and busy individuals alike. But a new Consumer Reports investigation shows that these popular products might come with hidden dangers. The study found that many protein powders and shakes contain unsafe levels of toxic heavy metals, particularly lead.
Researchers tested 23 top-selling supplements — including whey, beef, and plant-based options — and discovered that over two-thirds contained more lead in one serving than is considered safe for daily consumption. In several cases, the contamination levels were 10 times higher than recommended.
The Most Contaminated Products
Among the brands tested, Naked Nutrition’s Mass Gainer and Huel’s Black Edition stood out for all the wrong reasons. These plant-based powders contained 7.7 and 6.3 micrograms of lead per serving, respectively — far above the safety limit of 0.5 micrograms per day set by Consumer Reports.
Experts emphasize that no level of lead exposure is safe, since it can accumulate in the body over time and cause long-term health problems. Chronic exposure to lead and other heavy metals can lead to neurological damage, kidney issues, and high blood pressure.
Plant-Based vs. Whey: Which Is Safer?
The investigation revealed a significant difference in contamination based on protein source. Plant-based powders had nine times more lead than whey-based products and about twice as much as beef-based supplements.
This happens because plants naturally absorb heavy metals from the soil and water, making them more vulnerable to contamination compared to animal-based proteins.
| Protein Type | Lead Level (Compared to Whey) | Risk Level |
|---|---|---|
| Plant-based | 9x higher | ⚠️ High |
| Beef-based | 2x higher | ⚠️ Moderate |
| Whey (dairy) | Lowest | ✅ Lower Risk |
Why Regulation Is Lacking
One of the most concerning parts of the report is that the FDA does not regulate or test protein powders before they are sold. Manufacturers are responsible for their own safety testing, which often leads to inconsistent results.
Consumer Reports has urged the FDA to set strict limits on heavy metals and to conduct regular testing to ensure consumer safety.
Until such measures are in place, customers have little way of knowing whether their favorite protein brand is contaminated.
How Consumers Can Stay Safe
If you rely on protein shakes daily, here are simple steps to reduce your risk:
- Choose whey or dairy-based powders when possible.
- Check if the brand conducts third-party lab testing for heavy metals.
- Avoid excessive use — most people already get enough protein from food.
- Alternate with natural protein sources, such as eggs, beans, or yogurt.
Nutrition experts note that the average adult consumes more protein than the body actually needs, so relying heavily on supplements may not be necessary.
Final Takeaway
Protein powders may help meet fitness goals, but hidden toxins could undermine your health. With no strong federal oversight, it’s up to consumers to make informed choices. Until tighter regulations are established, the safest path is moderation — and whenever possible, get your protein from real food, not from a contaminated scoop.