Same org, 2018: https://cleanlabelproject.org/protein-powder-infographic/
Consumer Reports, 2010: https://www.consumerreports.org/media-room/press-releases/20...
Toxicology reports, 2020: https://pmc.ncbi.nlm.nih.gov/articles/PMC7509468/
> The data in the current study suggest that heavy metal exposure via protein powder supplement ingestion does not pose an increased non-carcinogenic risk to human health. Further, no carcinogenic risk was expected from As via ingestion of protein powder supplements. This study demonstrates that health risks of heavy metals in protein powder supplements should be conducted within the context of relevant background exposures and established health based standards instead of the presence of hazardous substances alone.
Something similar in India, 2024: https://pmc.ncbi.nlm.nih.gov/articles/PMC10994440/