The products made from sources of plant protein such as soy or hemp fared worse than those made from whey (milk) or egg, containing on average twice as much lead and measurably higher amounts of other contaminants.
Plant-based proteins may have higher contamination levels because the plants are especially prone to absorbing heavy metals from soil, says Sean Callan, Ph.D., a neuroscientist and director of operations at Ellipse Analytics, the lab that tested the protein products.
Whey and egg proteins may have lower levels of heavy metals because the source of the contamination would likely be the feed given to the animals. Callan suspects the animals' digestive systems diffuse some of the toxins.
Also important: Buying a product with an ""organic"" label did not reduce the chances of getting a contaminated product. In fact, organic protein supplements had higher levels of heavy metals, on average, than nonorganic.""
https://www.consumerreports.org/dietary-supplements/heavy-metals-in-protein-supplements/ #SoyProtein #WheyProtein #HempProtein"