Magnesium is a mineral derived from the diet necessary for the normal formation of bone, and for normal functioning of all body processes. Low magnesium blood levels are seen in people with chronic alcohol abuse, DM (diabetes mellitus), kidney disease, an under-active thyroid gland, poor nutrition or a decreased ability to absorb nutrients from food. High magnesium blood levels are seen in people with reduced kidney function, an over-active thyroid gland, Addison's disease, or diabetes mellitus (DM). The main cause of increased magnesium levels is the overuse of antacids containing magnesium. There are many medications that can affect magnesium levels.
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