Discover how low magnesium levels can increase the risk of insulin resistance and Type 2 diabetes, and learn the importance of finding a balance for optimal health.
Magnesium is a mineral your body needs for hundreds of processes, including controlling blood sugar and helping insulin work properly.
A large study tracking over 5,000 adults for nearly six years found that people with low magnesium in their blood were significantly more likely to develop insulin resistance and Type 2 diabetes.
Insulin resistance occurs when your cells stop responding well to insulin, and it is often the first step toward type 2 diabetes.
But more magnesium isn't always better.
The study found a sweet spot for blood levels of magnesium around 2.16 to 2.26 mg/dL. Below that range, diabetes risk climbs. Above it, risk also starts to creep back up. So the goal is balance, not just supplementing as much as possible.
When magnesium is too low, insulin can't do its job as well. Blood sugar stays higher, the pancreas works harder, and over time, the system breaks down. The study also found that low magnesium tends to correlate with higher HbA1c, the blood test that reflects your average blood sugar over the past two to three months.
The practical takeaway is that serum magnesium is worth checking, especially if you have risk factors for diabetes.
A blood test provides a more accurate picture than estimating based on diet alone, since what you eat and what actually reaches your bloodstream don't always align.
Zinc levels are also worth checking, since low levels of zinc and low magnesium together appear to worsen metabolic issues.
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