Question

Is demineralised or distilled water useful for drinking purposes? If not, how can it be made useful?

Answer 1

Demineralised or distilled water is the purest form of water. Demineralised or distilled water does not contain any minerals. Water containing essential minerals is useful for drinking.

Complete answer:
Water is very essential for all living organisms. Living organisms like plants, animals and human beings cannot survive without water. Water is also considered as the important source of essential nutrients required for living organisms.
Purification of water is important to remove all harmful impurities. However, though demineralised or distilled water are the purest form of water we cannot use it for drinking as they do not contain essential minerals as well.
Demineralised or distilled water can be made useful for drinking by adding all essential minerals in the required quantity which are necessary for living organisms.
Thus, demineralised or distilled water is not useful for drinking purposes but can be made useful by adding all essential minerals.

Additional information:
The main natural sources of water are rivers, lakes, wells etc. We cannot use water directly from these natural sources for drinking as water is contaminated with various types of impurities. So using purification techniques we purify the water and then use it for drinking. However, the water which we use for drinking is not 100% pure; it contains all desired minerals.

Note:
Due to the deficiency of essential minerals demineralised or distilled water is not suitable for drinking purposes. Due to its adverse effect, it is harmful for living organisms. It has its own significance mainly used in pharmaceutical companies to prepare medicines where the purest form of water is required.