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Recently three kinds of foods are very popular in the United States．

Convenience Foods

　　Instead of buying only fresh foods, Americans buy many more convenience foods．These are foods which are ready partly or completely prepared．There are also many canned convenience foods, such as soups and vegetables．

　　Convenience foods save time and trouble．They are popular with people who are busy or who don't like to cook or wash dishes．But they often cost more money than fresh, unprepared foods and may contain man-made additives．Also they don't taste as good as home-cooked foods．

　　Health Foods

　　In the 1960s, a “back to-the－earth” movement was started by young people in the United States．The movement was a reaction against the harmful effects of technology．Many people now prefer natural and organic foods to the prepared foods sold in food stores．

　　Diet foods

　　These days Americans are more and more concerned with their weight．American supermarkets sell a variety of diet foods such as soft drinks, diet candy, and diet salad dressings．Each year dozens of new diets are popularized．However, some of the diet foods are unbelievable．There are tricks in their advertisements．