A recent meta-analysis highlights magnesium deficiency as a potential risk factor for premature birth. But with so many contributing elements, how significant is this link?
According to Inserm, about 50,000 babies are born prematurely each year in France—before 36 weeks of gestation. Rates are rising, and while risk factors vary widely and some remain unknown, research points to several key contributors.
A British National Institutes of Health (NIH) publication identifies magnesium deficiency among them, alongside multiples pregnancies, urinary tract infections, vaginal bleeding, diabetes, stress, and pollution.
Magnesium (atomic number 12, Mg) isn't produced by the body and is depleted through exercise or stress, requiring regular dietary intake. It's essential for bone and tooth formation, growth, nerve impulse transmission, and brain plasticity.

Given the multitude of prematurity risks, pinpointing magnesium's role isn't straightforward. Yet a meta-analysis in Nutrition Reviews (June 1, 2020) reveals compelling correlations, drawing from observational, clinical, and ecological studies.
Observational data shows an inverse link between blood magnesium levels and prematurity risk. Clinical trials indicate magnesium supplementation reduces risk by 4% to 65% in women aged 20 to 35. U.S. ecological studies similarly link lower soil magnesium to higher prematurity rates.
These findings may encourage clinicians to routinely check magnesium in pregnant patients. Ultimately, a balanced daily diet remains the best way to maintain adequate levels.