There are three reasons about popularity of eating habits. The first thing, in the west, there are also restaurants that sell Thai foods. This is why some Thai people prefer European food. The second thing, some Thai people think that to use Raw materials for cooking of the west has quality more than use the seasoning of Thai. For example, the Meat imported from abroad because some people think the meat has better quality and delicious. The third thing, in the past, Thai people often to cooking because it make Cost savings. But, in the present, Thai people often eating outside because it has many foods. For example, Eat Buffet because Save time a cooking. So, When the time has changed. It make change the popularity of eating habits