Flutterby™! : I'm seeing these Consumer Reports

I'm seeing these Consumer Reports claims of lead and cadmium in chocolate, herbs, and spices, and the recommendations, where different cacao percentages from the same manufacturer allegedly have different levels of heavy metals, and they recommend one, strongly suggest that their sample sizes are too small to be meaningful.

Is there a deeper dive somewhere? https://www.consumerreports.or...m-in-dark-chocolate-a8480295550/