it essentially argues that, while it may be true that chromium was effective at reversing the insulin malfunctioning that these patients were experiencing, the evidence to take the leap to the idea that humans need chromium isn't there. to use an analogy, they're arguing that just because aspirin fixes your headache doesn't mean your headache was caused by an aspirin deficiency. fair enough and, given the toxicity of hexavalent chromium, there's a good reason to step away from it.
like i say: i didn't add anything for chromium, and there's no single item that is dangerously high in it, either. i'm well below all upper limits. i think it's useful to keep measuring it, even if i end up using those measurements to restrict it in the long run.