Heavy metals have been found in some dark chocolate products, including those from Trader Joe's and Hershey's. The presence of lead and cadmium in these products has raised concerns about their potential health impact, with some outlets suggesting that dark chocolate may not be as healthy as previously thought. Lawsuits have been filed against Trader Joe's and Hershey's over the issue, though the outcome of at least one lawsuit has been decided in Trader Joe's favor.