It is ten times higher than Okryu mineral water, one of mineral waters in Pyongyang, in iron ion content and considered to be particularly efficacious for digestive, endocrine and skin diseases.

Jon Il Nam, 73, living in Tongdaewon District, told KCNA that Samma mineral water helped him recover from duodenal ulcer.

Kim Sun Yong, 70, living in Jangchung-dong No. 2, Songyo District, said she felt relieved from pernicious anemia by taking the water from four years ago.

Kim Kyong Jun, 66, living in Songsin-dong No. 1, Sadong District, said all his family members are normally taking the water and his wife cooks dishes with it.