Is This Why Your Blood Sugar Spikes? (Most Docs NEVER Test for It)

You watch what you eat. You cut sugar. Maybe you even take meds for it.

And yet… your blood sugar still swings like a pendulum.

Well, what if it wasn’t about what you’re eating—or even what you’re doing—but what you’re missing?

Because mounting research suggests that a critical mineral deficiency could quietly sabotage your best efforts to manage blood sugar.

And it affects nearly half of older adults.

The mineral in question is magnesium—a natural element your body needs to regulate more than 300 processes, including how it uses insulin.

You’ve probably heard of it for sleep, or maybe muscle cramps… but its impact on blood sugar may surprise you

In fact, magnesium plays a key role in moving sugar out of your bloodstream and into your cells, where it can be used for energy. It also helps reduce inflammation and supports healthy function of your pancreas (which makes insulin in the first place).

But here’s the kicker: Nearly 48% of Americans don’t get enough magnesium—and rates are even higher among seniors, especially those with type 2 diabetes or prediabetes.

And many doctors will not test for magnesium on standard blood screenings.

One large-scale review found that low magnesium levels are strongly linked with insulin resistance, higher blood sugar, and increased diabetes risk.

And in a separate randomized controlled trial, researchers gave magnesium to patients with type 2 diabetes. Within just a few weeks, they saw:

• Lower fasting blood sugar
• Improved insulin sensitivity
• And a drop in HbA1c, a long-term marker of blood sugar control

Unlike expensive new diabetes drugs, magnesium is inexpensive, safe, and widely available. And it doesn’t just treat symptoms—it helps correct the root problem: how your body processes sugar at the cellular level.

So if your numbers won’t budge… this might be the mineral misfire holding you back.

You can’t feel a magnesium deficiency—but your blood sugar might be trying to tell you.

Start with these simple steps:

• Eat magnesium-rich foods daily. Think leafy greens (like spinach), pumpkin seeds, avocados, black beans, almonds, and dark chocolate.
• Watch out for magnesium robbers. Diuretics, acid-blockers, and excess sugar can drain your stores.
• Consider a supplement. Magnesium glycinate or citrate are well-absorbed forms. Typical doses range from 250–400 mg daily, but talk to your doctor if you’re on medication or have kidney issues.
• Balance it with other minerals. Magnesium works best when paired with potassium and calcium through a healthy diet.

This fix may be simple—but it’s powerful. And it might just be the missing piece in your blood sugar puzzle.

To plugging the leak, not just mopping the floor,

Rachel Mace
Managing Editorial Director, e-Alert
with contributions from the research team

P.S. The diabetes crisis NO ONE is talking about…

Sources:

• Rodríguez-Morán, M., Simental-Mendía, L. E., & Guerrero-Romero, F. (2011). Oral magnesium supplementation improves insulin sensitivity and metabolic control in type 2 diabetic subjects: A randomized double-blind controlled trial. Diabetes & Metabolism, 37(5), 446–453. https://doi.org/10.1016/j.diabet.2011.06.004
• Barbagallo, M., & Dominguez, L. J. (2015). Magnesium and type 2 diabetes. World Journal of Diabetes, 6(10), 1152–1157. https://doi.org/10.4239/wjd.v6.i10.1152
• Rosanoff, A., Weaver, C. M., & Rude, R. K. (2012). Suboptimal magnesium status in the United States: Are the health consequences underestimated? Nutrition Reviews, 70(3), 153–164. https://doi.org/10.1111/j.1753-4887.2011.00465.x