During recent years, many diseases have been discovered in meat. Reaserches carried out by scientists showed that some of those diseases cannot be killed by any ordinary means (eg. boiling). It would be therefore advisable to eat more vegetables and fruits, which don't contain any unhealthy components and which are an immense source of vitamins. There has also been an outburst of a disease carried by birds, so chicken breast- a meal favoured by dieteticians so far- can also be very leathal to our health. And the worst thing about eating meat is the way animals are often treated before they are slaughtered- they are overfed and live in overcrowded and very dirty cages.