Study finds magnesium drastically cuts risk of diabetes
Getting enough magnesium in your diet could help prevent diabetes, a new study suggests.
People who consumed the most magnesium in foods and from vitamin supplements were about half as likely to develop diabetes over the next 20 years as people who took in the least magnesium said researchers from the University of North Carolina.
The results may explain in part why consuming whole grains, which are high in magnesium, is also associated with lower diabetes risk.
To investigate, researchers looked at magnesium intake and diabetes risk in 4,497 men and women 18 to 30 years old, none of whom were diabetic at the study's outset.
During a 20-year follow-up period, 330 of the subjects developed diabetes.
People with the highest magnesium intake, who averaged about 200 milligrams of magnesium for every 1,000 calories they consumed, were 47 percent less likely to have developed diabetes during follow up than those with the lowest intakes, who consumed about 100 milligrams of magnesium per 1,000 calories.
Researchers also found that as magnesium intake rose, levels of several markers of inflammation decreased, as did resistance to the effects of the key blood-sugar-regulating hormone insulin.
Higher blood levels of magnesium also were linked to a lower degree of insulin resistance.
However, large clinical trials testing the effects of magnesium on diabetes risk are needed to determine whether a causal relationship truly exists.
It's plausible that magnesium could influence diabetes risk because the mineral is needed for the proper functioning of several enzymes that help the body process glucose, the researchers point out. Studies of magnesium and diabetes risk have had conflicting results, though.
The findings were published in the journal Diabetes Care.
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