Does anyone know if Staub or le Creuset have these things or any other horrible ingredients I haven't yet thought of? I'm mostly wondering about the interior surface and thinking more about Staub than the other. I've written to Staub with no response yet, and my internet searches haven't produced anything that seems completely trust worthy. Any thoughts would be appreciated. I'm not wanting to use regular cast iron for the high iron problems for men and I'm getting very suspicious about my All Clad with nickel and aluminum.