On the other hand, being vegetarian can cause diseases because such people don't get all the necessary nutrients and their health may get worse. Furthermore, they must think that vitamin pills are given to animals as a way to check whether they are dangerous. So, they do harm to animals, too, although they don't eat them. That is because many animals die during such experiments. Actually, eating a lot of meat isn't healthy, it may cause Actually, eat a lot of meat isn't healthy because it may cause colesterol or other illnesses. However, taking recommended portions of food is good.