Cast iron isn’t completely without risk. The iron from the pan can leach into food which can be a problem for people with high iron issues. On the flip side people with anemia could see some benefit. My personal favorite as someone with hemachromatosis is enameled cast iron.

I definitely thought it looked like a microscopic cat walked all over the sample.

It’s funny you mention brood sows as one of the Idaho legislaters directly compared women’s reproduction to that of cows

https://jezebel.com/idaho-lawmaker-i-have-opinions-on-the-womens-health-th-1849984572 To quote him directly:

“I’ve milked a few cows, spent most of my time walking behind lines of cows, so if you want some ideas on repro and the women’s health thing, I have some definite opinions,” Nelsen said, before having a little chuckle to himself.

https://www.themoscowtimes.com/2023/05/11/russia-to-build-migrant-village-for-conservative-american-expats-a81101