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Protein powder has become a fitness staple, often seen as an easy way to increase strength or aid in weight loss. But a new investigation from Consumer Reports finds that some of these products may be causing more harm than good. In tests of 23 popular protein powders and shakes, the nonprofit organization found that more than two-thirds of the samples contained lead per serving higher than the amount experts consider safe, up to ten times the daily limit. The findings raise fresh concerns about toxic metal contamination in supplements, an issue that has worsened over the years. The report notes that even plant-based powders marketed as “clean” are most often contaminated.
Toxic levels found in popular brands
According to Consumer Reports, the highest concentrations of lead were found in Naked Nutrition’s Vegan Mass Gainer and Huel’s Black Edition, both labeled as products to avoid. One serving of Naked Nutrition’s powder contains approximately 77.7 micrograms of lead, which is approximately 1,570% more than the CR’s safety limit of 0.5 micrograms per day. Huel’s Black Edition is close behind with 6.3 micrograms per serving, which is 1,290% over the limit.
Limit intake to once a week
Two other plant-based protein powders—Garden of Life Sport Organic Plant-Based Protein and Momentous 100% Plant Protein—also contain 400-600% more lead than the safe limit, leading Consumer Reports to recommend limiting them to just once a week.
Most contamination found in plant-based powders
On average, plant-based protein powders contain nine times more lead than dairy-based and twice as much lead as beef-based alternatives. While whey and dairy protein levels were generally the lowest, half of those tested still contained enough contamination for experts to discourage daily use.
Experts believe the contamination probably resulted from plants absorbing heavy metals from soil and water during growth. As demand for vegan supplements has increased, sourcing and manufacturing practices may struggle to maintain safety standards.
Why is lead exposure a serious concern?
Lead is a toxic metal that accumulates in the body and can cause long-term harm, even in small amounts. Continued exposure is linked to high blood pressure, kidney damage and cardiovascular problems. For pregnant women, the risks are especially serious because lead can impair fetal development and increase the risk of premature birth.
Children and those who frequently take supplements face the greatest danger, as lead accumulates in tissues over time. Experts emphasize that although short-term use of these products may not cause immediate harm, daily or heavy consumption can pose serious health risks.
Experts urge caution with protein supplements
Consumer Reports researchers say no protein powder is necessary to meet daily protein needs. Most people can easily get enough protein from regular foods like eggs, pulses and dairy. Since supplements are not regulated by the Food and Drugs Association in the US prior to sale, contamination often goes unreported.
“We advise against daily use of most protein powders,” said Tunde Akinleye, CR’s food safety researcher. “Many contain high levels of heavy metals, and none are necessary to meet your protein goals.”
protein rich foods
If you want to meet your protein needs without relying on supplements, there are plenty of natural, protein-rich foods that are healthy and widely available.
Nutritionist and holistic wellness coach Ishanka Wahi tells Health Shots: “Animal-based sources such as eggs, chicken, turkey, lean beef, fish, and dairy products such as milk, yogurt, and cheese provide high-quality protein with all the essential amino acids. For those following a plant-based diet, options include lentils, chickpeas, black beans, kidney beans, tofu, Contains tempeh, edamame, quinoa. Nuts, and seeds, which provide a good mix of protein and other nutrients.”
Including a variety of foods in your diet not only helps with muscle health, but also naturally provides vitamins, minerals and fiber, reducing reliance on processed protein powders.
(Note to readers: This article is for informational purposes only and is not a substitute for professional medical advice. Always seek the advice of your doctor with any questions you have about any medical condition.)
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