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To closely examine magnesiumâs importance to the heart muscle, we have to pull out our microscopesâyes, it gets right down to the cellular and even the molecular level. Magnesium plays an essential role in many of the functions of energy production itself.It is an integral part of the energy (ATP) and protein (enzymes-as co-factor and as a structural component of the muscle protein, myosin) moleculesâwithout which the energy to contract and relax the heart does not occur properly.o closely examine magnesiumâs importance to the heart muscle, we have to pull out our microscopesâyes, it gets right down to the cellular and even the molecular level. Magnesium plays an essential role in many of the functions of energy production itself.
In addition to its role in bone health, magnesium plays an important role in stabilizing adenosine triphosphate (ATP), the energy source for muscle contraction, and also serves as an electrolyte in body fluids. Muscle weakness, muscle twitching, and muscle cramps are common symptoms of magnesium deficiency. Limited data have suggested that magnesium status is indirectly related to the incidence of muscle cramps.