Italian cuisine early 20th centuries, influencing the cuisine of the country (which was otherwise dominated by meat and dairy products that the narrow Ligurian hinterland would have not allowed). Pasta dishes based on the use of "guanciale" (unsmoked bacon prepared with pig's jowl or cheeks) are often found in Lazio, such as pasta "alla carbonara" and pasta "all'amatriciana". Another pasta dish of the region is "arrabbiata", with spicy tomato sauce. The regional cuisine widely use offal, resulting in dishes like the entrail-based "rigatoni" with "pajata" sauce and "coda alla vaccinara". Iconic of Lazio is cheese made from ewes' milk (Pecorino Romano), "porchetta"
Blood type diet "wrong" diet. The underlying hypothesis of blood type diets is that people with different blood types digest lectins differently, and that if people eat food that is not compatible with their blood type, they will experience many health problems. On the other hand, if a person eats food that is compatible, they will be healthier. That hypothesis is, in turn, based on an assumption that each blood type represents a different evolutionary heritage. "Based on the ‘Blood-Type’ diet theory, group O is considered the ancestral blood group in humans so their optimal diet should resemble the high animal protein diets