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2007-01-17 11:26:53 · 5 answers · asked by mab1303 1 in Science & Mathematics Biology

5 answers

Magnesium is considered the "antistress" mineral. It is a natural tranquilizer, as it functions to relax skeletal muscles as well as the smooth muscles of blood vessels and the gastrointestinal tract. (While calcium stimulates muscle contraction, magnesium relaxes them.) Because of its influence on the heart, magnesium is considered important in preventing coronary artery spasm, a significant cause of heart attacks. Spasms of the blood vessels lead to insufficient oxygen supply through them and pain, injury, or death of the muscle tissue that they nourish. To function optimally, magnesium must be balanced in the body with calcium, phosphorus, potassium, and sodium chloride. For example, with low magnesium, more calcium flows into the vascular muscle cells, which contracts them, leading to tighter vessels and higher blood pressure. Adequate magnesium levels prevent this.
Magnesium, like potassium, is primarily an intracellular nutrient. It activates enzymes that are important for protein and carbohydrate metabolism, and it is needed in DNA production and function. Magnesium also modulates the electrical potential across cell membranes, which allows nutrients to pass back and forth. It helps in the release of energy by transferring the key phosphate molecule to adenosine triphosphate (ATP), an energy source generated by the cytochrome system.

In summary, even though it is not as prevalent as the other macrominerals, magnesium has many essential metabolic functions in the body. It is important in the production and transfer of energy, in muscle contraction and relaxation, in nerve conduction, in protein synthesis, and in many biochemical reactions as a cofactor to enzymes. Magnesium is also thought to dilate the blood vessels.

2007-01-17 11:30:48 · answer #1 · answered by Anonymous · 1 1

Magnesium in our body is needed for strong bones and muscles, and also for nerve action. A lack in magnesium can cause muscle cramps and weakness, and irregular heartbeat. The risks of megadose on the other hand can cause some disorders in the nervous system. The best sources of magnesium are raw green leafy vegetables, nuts, seeds, and whole grains.

2007-01-17 19:43:03 · answer #2 · answered by Pinoy Sophomore 2 · 0 0

The mineral magnesium is important for every organ in the body, particularly the heart, muscles, and kidneys. It also contributes to the composition of teeth and bones. Most importantly, it activates enzymes, contributes to energy production, and helps regulate calcium levels as well as copper, zinc, potassium, vitamin D, and other important nutrients in the body.

2007-01-17 19:30:37 · answer #3 · answered by Shayna 6 · 0 0

Magnesium governs calcium storage, which means that it helps to prevent kidney stones, calcified tendons and bone spurs. It also has a role in pain mangement, but at much higher dosages.

2007-01-17 19:34:50 · answer #4 · answered by Anonymous · 0 0

Magnesium is a cofactor that is necessary during glycolysis ( breakdown of glucose into 2 pyruvic acid) w/o Mg, glycolysis may stop or work slowly

2007-01-17 19:37:57 · answer #5 · answered by Anonymous · 0 0

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