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The population is deficient in magnesiumâfound abundantly in whole grains, beans and legumes, nuts and seeds, and leafy greens, as well as cocoa and molassesâfor several reasons. Soil depletion. Intensive agricultural practices rob the soil of magnesium and donât replace it.
How to Best Absorb Magnesium Supplements. Magnesium is needed for hundreds of your body's basic functions, including regulating your heart and blood pressure and helping to metabolize sugar and fats. It also helps your nervous system and combats such problems as insomnia and anxiety.