from 24-48 hours after magnesium IV administration, the heart took up the greatest proportion.
Of course, a cramp in the heart muscle is angina pain—or worse, cardiac arrest. It has happened to many endurance athletes who got critically low in magnesium (and hydration). We need plenty of magnesium and water to drive the electrical system.
Analyzing symptoms is probably the best way to gauge if you are getting enough magnesium. If you want to have a test then tissue analysis is better than blood plasma test. A blood test is not a reliable indicator of the magnesium levels in muscle and bone cells, where most of the magnesium in the body is stored. Blood levels of magnesium have to be kept in a tight range and if they
drop too low the cardiac health condition is considered very serious. Magnesium is regularly exchanged from muscle and bone to blood during stress.
It is possible to have a magnesium deficiency in muscle and bone cells, whilst still showing in the normal range in blood tests. The tissue cells store vast amounts of magnesium, most of which are intracellular stores and
most are part of the mitochondria or the stored ATP "battery" power of cells. We need huge back-up power in the event of major stresses that can demand large amounts of magnesium to maintain heart rhythm and vital functions.
Magnesium-Adenosine Triphosphate (Mg-ATP):
Our Electrical System Batteries
The electrical system is dependent on the work of mitochondria using magnesium to make the energy currency called Adenosine Triphosphate (ATP). The most abundant and natural form of magnesium on the planet
is magnesium chloride and is most commonly found in sea water or salt deposits as part of a structured hexahydrate crystal complex of six water (H20) molecules.
Mg2+ means that magnesium has two spare electrons in its outer shell that it can donate to buffer electron stealers (those missing electrons). In magnesium chloride (MgCl2), the two spare electrons in a magnesium ion join up with two chlorine ions each missing an electron in their outer shell, thus sharing a stable outer shell of eight electrons. In its natural salt form from ocean water the
MgCl is in a "hexahydrate" formation attached to six water molecules (i.e. MgCl2(H2O)). This form attracts water from the atmosphere, is highly water soluble and
easily taken up and used by cells.
Note that it's "chloride" and not chlorine. Chlorine is a halogen gas and free radical because it steals electrons. Chloride however has become stable. It is essential for
cell conductivity, fluidity and electrolyte balance. Gerald Pollack in his book The Fourth Phase of Water explains the process of water structuring to form crystal matrices (ice), with the preceding state being like a
"liquid crystal" fluid comprising more tightly stacked water molecules lining up in an "exclusion zone" (EZ), which is distinct from the bulk water behind it containing more random water molecules.
Magnesium has the ability to "squeeze" water molecules within its hydration shell.