Cast iron pans are popular, especially for searing, and are generally safe to use. But they can leach iron, which is a strong pro-oxidant. Those genetically at risk for iron overload should learn more about cast iron safety.

Is it healthy to cook in cast iron?

You've probably heard at one point or another that cooking in a cast-iron pan releases iron into your food. It's not a myth, nor is it a bad thing, especially for women, kids, and vegetarians, who are more prone to being iron-deficient. Research has shown that cast-iron use does indeed impact the iron level in food.

Why does cast iron have a Prop 65 warning?

Proposition 65 warning for California residents: WARNING - This product contains one or more chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.