Health and Wellness

Magnesium During Pregnancy

By Salt Lab | Published the 22nd Sep 2021

Magnesium is the fourth most abundant essential mineral in the body, and it plays a crucial role in over 300 different reactions in the body - from those needed for our metabolism and energy levels to those needed for healthy mood regulation and muscle contraction. 

Due to the extra demands and stress of growing a fetus, it is not surprising that the need for magnesium uptake drastically increases during pregnancy. Yet unfortunately, research (1) shows that the majority of both women of childbearing age and pregnant women don’t come close to meeting this increased need through diet alone, and are often deficient in magnesium prior to falling pregnant.  Additionally, changes in the metabolism of the mother during pregnancy mean magnesium excretion via the kidney increases - further diminishing her magnesium stores to levels nowhere near adequate enough to meet the demands of pregnancy.

So why is this an issue? Research has shown that a deficiency in magnesium during pregnancy may pose health risks for both the mother and her baby, including gestational diabetes and preeclampsia (1). Insufficient magnesium may also make the mother more susceptible to:

  •  Insomnia
  • Painful cramps
  • Debilitating headaches & migraines
  • Morning sickness
  • Gastrointestinal discomfort.

Indeed, up to 30% of women are affected by leg cramps and migraines during pregnancy, the incidence of which has been linked to magnesium depletion - without enough magnesium in the body, it cannot perform its incredibly beneficial role of a muscle relaxant and neurotransmitter regulator.  

At a time where the body is working harder than ever, it is therefore essential that pregnant women focus on a high magnesium diet (think nuts, seeds, green leafy vegetables, and fish) paired with a high-quality supplement. Supplementation during pregnancy represents a simple non-toxic, well-tolerated, and safe means to ensure pregnant women are getting sufficient magnesium and there are extensive studies showing the therapeutic benefit of magnesium supplementation in pregnancy. 

A topical spray like our Salt Lab Oil or our Deconstructed Bath Bombs both provides a safe and natural way to effortlessly boost the body with the magnesium it so desperately needs - and will gently ensure the ups and downs of pregnancy are a little smoother and more comfortable for Mum and Bub!

Disclaimer: As always, we suggest consulting with a healthcare professional first to identify any deficiency and determine supplement requirements accordingly. 

  1. Lynne M. Dalton, Deirdre M. Ní Fhloinn, Gergana T. Gaydadzhieva, Ola M. Mazurkiewicz, Heather Leeson, Ciara P. Wright, Magnesium in pregnancy, Nutrition Reviews, Volume 74, Issue 9, September 2016, Pages 549–557,