There’s no mystery to that. Before modern bioengineered insulin the major type available was porcine insulin. It’s very similar to human insulin. It must be

There’s no mystery to that. Before modern bioengineered insulin the major type available was porcine insulin. It’s very similar to human insulin. It must be injected like any other insulin (as a simple protein it's broken down quickly in the digestive tract). https://go.drugbank.com/drugs/DB00071#identification-header https://go.drugbank.com/drugs/DB00071#identification-header Now and then it comes up and diabetes discussion groups, what would we do in the event of a widespread disaster without access to the pharmaceutical system? Pig pancreas. From what I recall it requires a very large amount of pancreas, perhaps several organs per dose, and a centrifuge.