How Magnesium May Influence Blood Sugar When Taken Regularly

If you are exploring ways to manage blood sugar, you may wonder whether magnesium supplements can help. Magnesium plays a role in how the body uses insulin and regulates glucose, but that does not mean a supplement is the right choice for everyone. Here is a closer look at the research, who may benefit, and why food is generally the preferred source.

How Magnesium Affects Blood Sugar

Magnesium helps regulate blood sugar by supporting glucose absorption and use, as well as improving how the body responds to insulin. Research has found that:

• Magnesium helps insulin move sugar from the bloodstream into cells.

• Low magnesium levels may interfere with the body’s ability to release insulin.

• Higher magnesium levels have been associated with better insulin sensitivity.

• Greater magnesium intake may reduce the risk of type 2 diabetes in people with prediabetes or insulin resistance.

What the Research Says About Magnesium Supplements and Blood Sugar

Studies on magnesium and blood sugar are still relatively early, but the findings are encouraging. So far, research has suggested the following:

• Four months of magnesium supplementation may significantly improve fasting blood sugar in people with or without diabetes.

• Three months of supplementation may improve hemoglobin A1C (HbA1C) and lower insulin resistance in people with type 2 diabetes, although this came from a small study involving 42 participants.

• Children with type 1 diabetes and low magnesium levels showed better blood sugar control after three months of supplementation, though this was also a small study with 71 participants.

Even so, the American Diabetes Association does not recommend routinely using magnesium, or any other supplement, to improve blood sugar unless a nutrient deficiency has been diagnosed. The group also notes that supplements can carry risks, including side effects and medication interactions, and that a balanced diet is the best way to meet the body’s nutrient needs.

Should You Take Magnesium Regularly?

The answer depends on the person. The American Diabetes Association does not view magnesium supplements as an effective blood sugar-lowering strategy, but people who are deficient in magnesium may benefit from taking one. Before starting any new supplement, it is important to speak with a healthcare provider.

If you are thinking about using magnesium supplements, keep these points in mind:

• The recommended daily intake is 310-320 milligrams for adult females and 400-420 milligrams for adult males, including magnesium from food, drinks, supplements, and medications.

• Several forms of magnesium are available. Magnesium oxide and chloride may be more useful for lowering blood sugar, while magnesium aspartate and citrate are absorbed more easily.

• Try to get most of your magnesium from food rather than supplements. Good sources include spinach, legumes, nuts, seeds, and peanut butter.

• Because magnesium can interact with a number of medications, let your doctor or pharmacist know about everything you take so they can help avoid problems.

Possible Risks and Side Effects of Magnesium

Magnesium supplements are generally safe, but too much can cause diarrhea, nausea, and abdominal cramping. Very high doses can lead to more serious effects, including low blood pressure, breathing difficulties, irregular heartbeat, and cardiac arrest.

Magnesium can also interact with several medications, including:

• Bisphosphonates

• Certain antibiotics, such as tetracyclines and quinolones

• Diuretics

• Proton pump inhibitors

Because of these risks, it is always wise to check with a healthcare provider before beginning a magnesium supplement.

Other Ways to Help Lower Blood Sugar Naturally

Beyond magnesium supplements, there are other ways to support healthier blood sugar levels. These habits may help improve control:

• Choose nourishing foods like non-starchy vegetables, lean proteins, and quality carbohydrates.

• Limit processed foods and items with added sugar.

• Get at least 30 minutes of physical activity on a few days each week.

• Maintain a weight that you and your provider agree is appropriate for you.

• Use healthy stress-management tools such as breathing exercises or meditation.

• Get at least seven hours of good-quality sleep each night.

• Drink plenty of water.