What is deuterium and low deuterium water

To be able to understand, a little knowledge is needed

Deuterium is one of the isotopes of hydrogen. The nucleus of most hydrogen atoms in nature contains a proton (chemical symbol: 1H), but the nucleus of the hydrogen atom can also contain a proton and a neutron or a proton and two neutrons. In the first case, it is called deuterium (chemical symbol: 2H or D), and in the second - tritium (chemical symbol: 3H or T).

The deuterium content of surface water in our climate zone is 150 ppm (parts per million), with minimal fluctuation; of precipitation in the equatorial zone, of 155 ppm; and of the waters of the northern part of Canada, inside the continent, of 135-140 ppm. The amount of deuterium in water varies depending on latitude, but also on altitude (it has a value of 150 ppm at sea level and about 130 ppm at a height of 2,000 meters). The amount of deuterium measured in water is directly proportional to the deuterium content of the organisms that live there.

The concentration of deuterium in the body of an adult is about 120-140 ppm. Although it does not seem much, if we compare this amount with the mass of other vital elements, it is observed that deuterium is present in the body in an amount six times greater than calcium and ten times greater than magnesium.