[Scoundreller]

Food examples are great and all, but the article is about an iron block that you cook food with. Per your numbers, one would only need to consume 80mg+ per day (of the elemental) to start getting into trouble territory.

My concern is over how cooking conditions (or other factors) may affect how much iron leaches out into the food, which would cause iron overload if high enough, just like those iron fortified supplements.

I never stated that the body can't adjust the amount of iron absorbed.

I stated that iron overload, which is when one's body already has too much iron accumulated, is not well handled by the body. This is true, because the body is very poor at excreting iron in response to excessive iron levels, because iron is conserved very well (unlike, say, Vitamin C).

[Turing_Machine]

People have cooked in cast iron pots for thousands of years.

It's not a problem.