By Kerri-Ann Jennings, M.S., R.D., Associate Nutrition Editor at EatingWellMagazineCast-iron skillets may seem like an old-fashioned choice in the kitchen. But this dependable cookware is a must in the modern kitchen. Cast-iron skillets conduct heat beautifully, go from stovetop to oven with no problem and last for decades. that there are some great health reasons to cook with cast iron.
[1. I took this one out because I feel it's completely wrong advice.]
2. Cast iron is a chemical-free alternative to nonstick pans.
Another benefit to using cast-iron pans in place of nonstick pans is that you avoid the harmful chemicals that are found in nonstick pans. The repellent coating that keeps food from sticking to nonstick pots and pans contains PFCs (perfluorocarbons), a chemical that’s linked to [all sorts of bad things] PFCs get released—and inhaled—from nonstick pans in the form of fumes when pans are heated on high heat. Likewise, we can ingest them when the surface of the pan gets scratched.
3. Cooking with cast iron fortifies your food with iron.
While cast iron doesn’t leach chemicals, it can leach some iron into your food...and that’s a good thing. Iron deficiency is fairly common worldwide, especially among women.
Cooking food, especially something acidic like tomato sauce in a cast-iron skillet can increase iron content, by as much as 20 times.

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