A villager eats «ampo», a traditional snack made from clean, gravel-free dark earth, in Tuban, East Java province March 29, 2010. Although there is no medical evidence, villagers believe the soil snacks are an effective pain-killer and pregnant women are encouraged to eat them as it is believed to refine the skin of the unborn baby. REUTERS/Sigit Pamungkas (INDONESIA — Tags: SOCIETY FOOD)