Another explanation is that the Israelites were nomads - they were always moving from place to place. People have to stay in one place to raise pigs. The Israelites did not want to stay in one place because they did not want to change their culture. As a result, they did not eat pigs. Anthropologists believe that most food likes and dislikes are a result of the ways of life of different people. Some people live in areas where there are both large animals and many insects. It is difficult for these people to kill large animals, and it requires a lot of energy. It is easier for them to use insects for food because it is not difficult to catch insects and it does not require a lot of energy. Nomadic people who move around will not want to keep pigs for food. People will not eat pets such as dogs. Americans eat a lot of beef because there is plenty of land for raising cattle and their meat can be shipped cheaply for long distances by railroads.