What are the controlling factors in magnesium homeostasis?

Updated: Oct 30, 2020
  • Author: Tibor Fulop, MD, PhD, FACP, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

The main controlling factors in magnesium homeostasis appear to be gastrointestinal absorption and renal excretion. The average American diet contains approximately 360 mg (ie, 15 mmol or 30 mEq) of magnesium; healthy individuals need to ingest 0.15-0.2 mmol/kg/d to stay in balance. Magnesium is ubiquitous in nature and is especially plentiful in green vegetables, cereals, grains, nuts, legumes, and chocolate. Vegetables, fruits, meats, and fish have intermediate values. Food processing and cooking may deplete magnesium content, thus accounting for the apparently high percentage of the population whose magnesium intake is less than the daily allowance.


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