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Dietary Magnesium Deficiency Induces Heart Rhythm Changes, Impairs Glucose Tolerance, and Decreases Serum Cholesterol in Post Menopausal Women

Forrest H. Nielsen, PhD, David B. Milne, PhD**, Leslie M. Klevay, MD*, Sandra Gallagher, BS and LuAnn Johnson, MS

US Department of Agriculture a,b, Agricultural Research Service, Grand Forks Human Nutrition Research Center, Grand Forks, North Dakota
a The US Department of Agriculture, Agricultural Research Service, Northern Plains Area, is an equal opportunity/affirmative action employer, and all agency services are available without discrimination
b Mention of a trademark or proprietary product does not constitute a guarantee or warranty by the US Department of Agriculture and does not imply its approval to the exclusion of other products that also might be suitable


Figure 1
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  		Fig. 1. Erythrocyte membrane magnesium concentrations. +Value does not contain four subjects that began magnesium repletion after 42, 52 and 64 days of magnesium depletion.

 

Figure 2
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  		Fig. 2. Plasma magnesium concentrations. *Value does not contain two subjects that began magnesium repletion after 42 and 52 days of magnesium depletion. +Value does not contain four subjects that began magnesium repletion after 42, 52 and 64 days of magnesium depletion.

 

Figure 3
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  		Fig. 3. Serum total cholesterol concentrations. *Value does not contain two subjects that began magnesium repletion after 42 and 52 days of magnesium depletion. +Value does not contain four subjects that began magnesium repletion after 42, 52 and 64 days of magnesium depletion.

 

Figure 4
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  		Fig. 4. Erythrocyte superoxide dismutase concentrations. +Value does not contain four subjects that began magnesium repletion after 42, 52 and 64 days of magnesium depletion.

 

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  		Fig. 5. Serum glucose concentrations of 10 volunteers from which blood was collected for each time period in and IVGTT test during magnesium depletion and repletion. The area under the curve was significantly different (p < 0.006), but the glucose disappearance rate was not significantly different, between the magnesium depletion and repletion periods.

 

Figure 6
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  		Fig. 6. Serum insulin concentrations of 10 volunteers from which blood was collected for each time period in and IVGTT test during magnesium depletion and repletion.

 

Figure 7
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  		Fig. 7. Serum glucagon concentrations of 10 volunteers from which blood was collected for each time period in an IVGTT test during magnesium depletion and repletion. The mean glucagon concentration was higher during magnesium repletion than depletion (p < 0.02).

 




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