The sausages above were made from Lactobacillus and Bifidobacterium, probiotics that were taken from 43 fecal samples of kids up to six months old by scientists at Catalonia's Institute of Food and Agricultural Research in Spain. According to Anna Jofré, a food microbiologist from the study, "Probiotic fermented sausages will give an opportunity to consumers who don't take dairy products the possibility to include probiotic foods to their diet."
Apparently, these same bacteria help "fuet", a thin fermented pork sausage from Catalonia (usually diaper content-free), develop its unique flavor. The cured pork meat is full of umami notes and is good for you thanks to the probiotics that support the health of your digestive system (the same bacteria found in yogurt).
By the end of their experiment, professional tasters confirmed that the baby poop-bred sausages tasted like regular fuet, despite the former being a healthier, low-fat version.