First, the bloody flavor. Because when killing animals, there will be a process of bloodletting, is afraid of the meat inside the bloody flavor, but the viscera inside the blood vessels, far from the bloodletting mouth, it is very difficult to put the blood out of the blood, so it will be left in the viscera, when the viscera will be made into food, the bloody flavor will be a lot heavier than the meat, so some people don't like it is very normal. Flavor is said to be the texture and taste of the viscera itself, people who have eaten viscera know, let's say that the liver, waist, heart taste are different, some are more noodle, some are more powerful, some people are willing to eat the heart is not willing to eat liver, this aspect of the existence of a great relationship between the people who hate all the viscera taste is also a lot of people.
Hygiene, then, is what most people care about. Because animals in the process of life movement, viscera and blood vessels for nutrient transfer and waste to interact with the place, viscera every moment in the work state, so its internal accumulation of waste has a particularly large, just like people, the older you get, the more disease, and most of the disease is the body's internal organs out of the problem.
So in fact, animals are the same, the internal organs are really very unclean, especially the kidneys and lungs, one is to filter the urine, one is to filter the air, are interacting with the outside world the most, so the bacteria and dirt is also the most. Anyone who understands this aspect very well or is sensitive to aspects of it won't continue to eat it.
And then my advice is, not only don't eat offal, but even meat should be eaten less, and fatty meat even less, all for the sake of your own body.