to type 2 diabetes
Before developing diabetes, fasting blood sugar levels begin to rise along with chronically elevated signs of inflammation. This condition is called pre-diabetes and if left unchecked can progress to type 2 diabetes.
In this study, doctors measured magnesium in the diets of 2,582 people, aged 26 to 81, about one in three of whom started the study with mildly elevated fasting and after-meal blood glucose levels, making them pre-diabetic. Over the next seven years, doctors tracked blood sugar and insulin levels to measure the chances of developing type 2 diabetes.
Overall, compared to those who got the least, those who got the most magnesium were less than half as likely to develop type 2 diabetes. Both the normal and impaired blood sugar groups saw magnesium reduce chances of progressing to type 2 diabetes, with the greatest benefit going to those who began the study with pre-diabetic blood sugar levels.
Lack of exercise and poor diet choices can lead to metabolic syndrome, a combination of factors that include high blood pressure and sugar, elevated triglycerides, low levels of HDL—the “good” cholesterol, and abdominal obesity. Over time, these factors raise the chances of developing type 2 diabetes.
Doctors in this study wanted to test for a link between magnesium in the diet and chances of developing metabolic syndrome. Researchers reviewed six studies involving 24,473 people, about one in four of whom had metabolic syndrome.
Participants in the studies got between 117 and 423 mg of magnesium per day. Overall, compared to those who consumed the least, those who got the most magnesium were 31 percent less likely to develop metabolic syndrome. For every increase of 100 mg of magnesium per day, chances for developing metabolic syndrome declined by 17 percent.