Mountain spring, natural water produced by mountain spring eyes. It is a kind of drinking water specially recognized by China people. It is generally believed that mountain spring water is the best in drinking water. Natural mountain spring water contains more metasilicic acid, lithium and strontium, which has similar biological functions to calcium and magnesium, can promote the growth and development of bones and teeth, and is beneficial to bone calcification and prevention and treatment of osteoporosis. It can also prevent hypertension, protect the heart and reduce the disease selection rate and mortality rate of cardiovascular and cerebrovascular diseases.