Heavy metal in most chocolates may not pose health risk, researchers say

Some consumer groups and independent test agencies have previously reported heavy metal contamination in cocoa products such as dark chocolate, with possible causes being the type of soil where cocoa is grown and industrial processing. Researchers at the George Washington University School of Medicine and ConsumerLab.com found that 70 of the 72 cocoa-containing products they analyzed fell below limits set by the Food and Drug Administration (FDA) for lead contamination.