Mama is a Thai brand that become a synonym for instant noodles. Tom Yum Shrimp is the favorite flavor. Other local players in the market include the Wai Wai and Yum Yum brands. Due to their ubiquity, instant noodles were chosen as a vehicle for dietary fortification by a joint effort of the Federation of Thai Industries, instant noodle producers, and the Ministry of Public Health about 10 years ago. The vitamins and minerals added are iron, iodine and vitamin A. Unlike Japanese or Malaysian instant noodles, Thai noodles are seasoned with chicken stock before frying, giving them extra flavor, and they are sometimes consumed directly as a snack without further cooking. Instant noodles have spread all over Thailand, and now include real dehydrated meat such as pork and beef.