I really don't understand why it has taken health research this long to focus on the digestive system. Obviously, it's all hindsight - but the system that controls processing the entirety of our nutrients seems like it would clearly be a lot more important than it has been treated.
I don't think it has rather they have forgotten in the past looking at your shit was a very common way to diagnose your illness. At least that is the case in all old medical systems from Asia.
