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Lead and cadmium found in muscle-building protein powders, report says
(CNN) — Over-the-counter protein powders may contain disturbing levels of lead and cadmium, with the highest amounts found in plant-based, organic and chocolate-flavored products, according to a new investigation.
Plants naturally absorb heavy metals from the planet’s crust but can contain elevated levels if grown in soil that has been further contaminated by mining, industrial waste, and some pesticides and fertilizers. The Council for Responsible Nutrition, an industry association that represents supplement manufacturers, told CNN via email that the new report did not provide sufficient transparency about the criteria used for contamination thresholds and how products were selected. Protein powder samples were then sent to an independent certified laboratory, which ran nearly 36,000 individual tests on 258 different contaminants, including heavy metals, bisphenols, phthalates and perfluoroalkyl and polyfluoroalkyl substances, or PFAS.
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