Recently, the medical researchers in Bulgaria have found that the mineral spring water containing high content of mineral substances can endanger the health of babies. The weight of water usually takes up 70% to 80% of the total weight of a baby. The weight of water only takes up 60% of the total weight of an adult. Therefore, water is more important for babies. 

According to our traditional knowledge, mineral spring water comes from the deep part of the earth and contains abundant mineral salt and trace elements, so it can provide the essential nutrients for the human body. At the same time, in order to maintain healthy and comprehensive development, it is suitable for babies to drink this kind of water to obtain some nutrients directly. Therefore, more and more mothers like to provide mineral spring water for their babies. However, the result of medical research in Bulgaria has proved that this method of raising babies is unhealthy.

This result can be explained by the absorption principle of water. Generally speaking, water can move from the low density to the high density. When people are drinking water, the density of the body fluid is higher than that of water and a kind of potential energy difference is formed. Thus, the water can pass the epicyte and be absorbed by the cells inside the human body. If the water contains too many mineral substances, the density of water can be raised so as to reduce or even reverse the potential energy difference. The absorption of water by the human body can be disturbed, which can even cause the body fluid to ooze outward. At the same time, protein contained inside the human body can transport the essential nutrients to the cells, and this process is not affected by the differences of density. However, the physical structure of the babies is rather different from that of the adults. The digestive system of the babies is not well developed. If the babies drink mineral spring water directly, the osmotic pressure of the foods can be raised and the burden of the kidney can also be increased.

In addition, the content of trace elements contained in mineral spring water is designed according to the standard of the adults. The content is not suitable to babies, and some elements can even endanger these babies. Some countries have amended the standard of the content of mineral elements in order to maintain the health of babies. For example, the content of uranium has been strictly restrained.