The story of how we have cheap hormones (birth control, transgender hrt, cortisol for arthritis) is WILD. It's called Marker degradation; an unpatented process that turns a product of yams in Mexico into various mammalian hormones.
https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/progesteronesynthesis.html
@jovialthunder really fun article, the fact that it's unpatented means it might be worth looking into sourcing in case of any sort of societal collapse (particularly because I am scared of horses), and honestly who doesn't wanna fight a business major
@elfi that's exactly what got me reading about it this morning (the collapse, not the horses or the fighting lol) — I realized that I had no idea where it came from & wanted to see how feasible a backyard setup would be.