Magnesium is extremely necessary for your health as it is needed for more than 300 biochemical reactions in the body. Magnesium is fourth most available mineral in the body and is essential for a good and sound health. Roughly 50% of total body magnesium is stored in our bones. The remaining part of magnesium is predominantly found in the cells of body tissues and organs. Only 1% of magnesium is available in blood, however human body always strives strongly to keep constant blood levels of magnesium.

Magnesium is needed to keep muscle and nerve functioning normal and heart beat rhythmic. It also helps to support a healthy immune system, and keeps bones strong. Magnesium also helps to regulate blood sugar levels, thereby promoting normal blood pressure and supports energy metabolism and protein synthesis. Magnesium has a positive effect on treatment of disorders such as cardiovascular disease, hypertension, and diabetes. Dietary magnesium gets absorbed in the small intestines and is excreted through the kidneys.

Read more at below link reference :

http://drbenkim.com/nutrient-magnesium.html

http://ods.od.nih.gov/factsheets/magnesium

http://www.whfoods.com/genpage.php?tname=nutrient&dbid=75

http://www.healthaliciousness.com/articles/foods-high-in-magnesium.php

http://www.ctds.info/5_13_magnesium.html