“Candace Part *Molecules of Emotion* discovered that the gut is very rich in neuropeptides. Some have even suggested that we should talk about the gut brain. Constant conversations between different parts of body (biosemiotic Innenwelt) of course, but particularly rich between gut and brain. Justifies ‘plumping for…', abductive logic, and general wisdom of listening to gut feelings, of course. This is how natural world does it. Prob only works in humans, though, on the basis of max semiotic openness and curiosity… (well furnished mind etc.)”

Source: https://www.scientificamerican.com/article/how-gut-bacteria-tell-their-hosts-what-to-eat/