Magnesium
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By CP Staff
Researchers have found that magnesium may reduce mortality associated with reduced cardiovascular health and support normal heart rhythms in women. This study was based on earlier studies that suggest that magnesium supports normal heart rhythms.
In this new study, 88,375 healthy women enrolled in the Nurses’ Health Study were evaluated for magnesium intake. During the 26-year follow-up period, the women completed questionnaires every 2 to 4 years regarding intake of nutrients such as magnesium and lifestyle factors.
During the follow-up period, 505 women died due to sudden cardiovascular complications or heart rhythm abnormalities. Of these women, 99 of the cases were selected and were compared to women with similar age, ethnicity, smoking status and cardiovascular health.
The results of the study showed that the women with the highest plasma and dietary magnesium levels had a decreased risk of sudden cardiovascular mortality. More specifically, the study found that the women with the highest dietary intake of magnesium had a 34 percent reduced risk of sudden cardiac-related mortality compared to the women with the lowest dietary intake. In addition, the women with the highest plasma magnesium levels had a reduction of 77 percent in the risk of sudden cardiac-related mortality compared to the women with the lowest plasma magnesium concentrations. Furthermore, the study showed that for each 0.25-mg/dL increase in plasma magnesium, there was a 41 percent reduction in the risk of sudden cardiac-related death.
The researchers concluded, “In this prospective cohort of women, higher plasma concentrations and dietary magnesium intakes were associated with lower risks of sudden cardiac death. If the observed association is causal, interventions directed at increasing dietary or plasma magnesium might lower the risk of sudden cardiac death.”
Reference:
Chiuve SE, Korngold EC, Januzzi JL Jr, Gantzer ML, Albert CM. Plasma and dietary magnesium and risk of sudden cardiac death in women. Am J Clin Nutr. 2010 Nov 24. Published Online Ahead of Print.
Posted by: Dr. Robert A. Macchione - Austin Medical Equipment
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