Magnesium in pregnancy

Magnesium is an essential mineral that plays a key role in numerous physiological processes, including those important for a healthy pregnancy. It contributes to muscle and nerve function, the regulation of blood sugar levels and blood pressure, and is necessary for the structure of bones and DNA. During pregnancy, adequate magnesium status may help minimize complications such as preeclampsia, fetal growth restriction, and premature birth.

Magnesium requirements during pregnancy

The Magnesium requirements increase during pregnancy, to support the increased physiological requirements and growth of the fetus. The German Society for Nutrition (DGE) recommends that pregnant women Daily intake of about 310 to 400 mg magnesiumThese recommendations may vary depending on individual health conditions and nutritional status. For comparison: The DGE recommends a daily intake of around 300 mg of magnesium per day for non-pregnant women.

Duration of intake

Magnesium supplementation can be started at any time during pregnancy, especially if there are signs of deficiency or an increased risk of pregnancy-related complications. It should be taken under medical supervision to determine individual needs and the optimal duration of supplementation. If you want to know more about the possible signs of deficiency, read our article on magnesium deficiency.

Magnesium during pregnancy: compensation through diet?

It is also possible to increase magnesium intake through your diet. Foods rich in magnesium include: plant foods such as pumpkin seeds, Brazil nuts and cashews. Often, changing your diet is not enough to achieve the desired dosage. In this case, you can resort to dietary supplements that contain magnesium. However, there are some differences to consider here, as the bioavailability, i.e. how much we actually absorb, is highly susceptible to fluctuations. magnesia is more suitable for the treatment of constipation due to its low bioavailability, while Magnesiumcitrat and Magnesium glycinate have significantly higher bioavailabilities.

Risks of overdose

Although magnesium in the diet is generally safe and necessary, excessive intake of magnesium supplements can lead to side effects, especially if kidney function is impaired. Symptoms of magnesium overdose (hypermagnesemia) can Fatigue, muscle weakness, cardiac arrhythmias and gastrointestinal disorders.

Differences between trimesters

Magnesium requirements tend to increase as the pregnancy progresses, in line with the growth and needs of the baby. However, there are no specific guidelines that provide a different magnesium intake for each trimester. The general recommendation is to maintain a constant and adequate intake throughout the pregnancy.

Recommended forms of magnesium during pregnancy

For supplementation during pregnancy, Magnesium citrate or magnesium lactate is often recommended, because these forms have a high bioavailability and are generally well tolerated. magnesium sulfate is used in medical practice to prevent and treat severe cases of pre-eclampsia and eclampsia, but usually under inpatient conditions and with careful monitoring.

Magnesium in pregnancy: treatment option for preeclampsia

pre-eclampsia is a serious condition that occurs during pregnancy and is characterized by high blood pressure and often also by the excretion of protein in the urine (proteinuria) after the 20th week of pregnancy. It can lead to serious, potentially life-threatening complications for mother and baby, including the development of eclampsia, which is characterized by severe seizures. Magnesium sulfate plays a crucial role in the prevention and treatment of these conditions, based on its neuroprotective and vasodilatory properties.

Neuroprotective effect

Magnesium sulfate is used to prevent seizures in women with preeclampsia to reduce the risk of developing eclampsia. Magnesium acts as a calcium channel blocker, which inhibits the transfer of calcium ions through cell membranes, resulting in reduced neuronal excitability. This reduced excitability can increase the threshold for triggering seizures and thus have a neuroprotective effect.

Vasodilating effect

Magnesium sulfate also has vasodilatory properties that may help control blood pressure. By relaxing the smooth muscle in blood vessel walls, magnesium sulfate may help reduce the high blood pressure that plays a role in preeclampsia. This vasodilatory effect helps improve uteroplacental blood flow, which in turn may improve the delivery of oxygen and nutrients to the fetus.

Prevention of eclampsia

The administration of magnesium sulfate is considered Standard treatment for the prevention of eclampsia in women with preeclampsiaSeveral clinical trials and systematic reviews have shown that magnesium sulfate is more effective than other anticonvulsants in preventing eclamptic seizures and significantly reduces maternal and neonatal morbidity and mortality.

mechanisms

Although the exact mechanism by which magnesium sulfate exerts its protective effects is not yet fully understood, studies suggest that the combination of neuroprotective and vasodilatory properties is crucial. In addition, magnesium is thought to inhibit the release of pro-inflammatory factors and improve endothelial function, helping to reduce the symptoms of preeclampsia. Magnesium sulfate is usually administered intravenously in the hospital.

Magnesium during pregnancy: useful against muscle cramps?

Calf cramps are a fairly common phenomenon during pregnancy. Depending on the study, it is estimated that 30 to 45% of all pregnant women suffer from it at least onceThese occur more frequently, especially in the second half of pregnancy, and can disturb sleep, especially at night.

Since there is no really well-established treatment for these cramps, the researchers in this Study the molecule Magnesium bisglycinate looked closer. The pregnant women were given 4 mg of magnesium bisglycinate daily for 300 weeksCompared to the placebo group, the magnesium group had a 50 percent reduction in cramps.

Gestational diabetes and magnesium

Gestational diabetes, also known as gestational diabetes, is a form of diabetes that occurs during pregnancy and is characterized by high blood sugar levels. Pregnant women exhibit insulin resistance and, at the same time, increased inflammatory parameters.
Magnesium plays a key role in energy metabolism and in regulating insulin activityIt is a cofactor for numerous enzymesinvolved in glucose utilization and helps promote sugar uptake into cells and improve insulin sensitivity. Magnesium deficiency can lead to reduced insulin action and increased insulin resistance, two major factors that can contribute to the development of gestational diabetes.

In this Study became pregnant Women with gestational diabetes with magnesium, vitamin D, Zinc and Calcium supplemented. The idea behind it was to balance these nutrients, as pregnant women are more likely to be deficient in these four substances. The researchers were able to show that the supplementation changed the inflammation parameters.

Conclusion

Adequate magnesium intake is crucial for the health of both mother and child during pregnancy. While adequate intake helps support normal physiological functions and minimizes risks of pregnancy-related complications, medical advice should always be sought in cases of serious conditions such as pre-eclampsia. Magnesium supplements can also reduce the number of muscle cramps during pregnancy.