If you eat raw meat, raw fish or earthworms in game, you become a Food Poisoning. Thats not realistic. In real life, I eat raw fish in the form of sushi and will not get sick. In real life, I eat raw pork in the form of Mett (North German specialty) and it'm never ill. I've never heard that there is a child that has been eating earthworms, died from it. Man can easily eat raw meat without becoming ill from food poisoning. The only danger in eating fresh raw meat is to suffer from parasites or other diseases, where the animal has suffered previously. In my opinion, you should also in such a realistic game like DayZ can eat raw meat, without it dying right away.
Excuse me if this text is difficult to readily suggest. It was translated by Google. ;)