Are you interested in learning more about your body? Do you want to be as health conscious as you can? Magnesium is a mineral which is naturally present in various foods. It is present in abundant quantities in the human body. This mineral works as a cofactor along with more than 300 enzymes in our body and regulate the various biochemical reactions happening inside our system. An adult human body contains approximately 25 g magnesium and about 50 to 60 % is present in the bones and the rest of it is present in soft tissue. There are many sources of magnesium such as food, water, dietary supplements, medicines, etc. Our body absorbs about 30 to 40 % of the magnesium we consume. Magnesium deficiency is commonly seen elderly people and in African Americans. Athletes use this mineral to increase their energy levels and endurance. In older adults, the dietary intake of magnesium is lower compared to the younger adult. The absorption of Magnesium from gut decreases and renal excretion of magnesium increases with age.