Morning Sickness and Magnesium Deficiency During Pregnancy: What You Need to Know

Morning Sickness and Magnesium Deficiency


Pregnancy is a beautiful journey filled with joy and anticipation. However, for many expectant mothers, the first trimester can be marred by morning sickness, a common and sometimes overwhelming symptom. While morning sickness is a natural part of pregnancy, there has been growing interest in the connection between morning sickness and magnesium deficiency. In this comprehensive blog post, we will explore the role of magnesium during pregnancy, its potential impact on morning sickness, and whether it is safe to take magnesium supplements while expecting.

Understanding Morning Sickness

Morning sickness, typically characterized by nausea and vomiting, affects approximately 70-80% of pregnant women. Contrary to its name, morning sickness can occur at any time of the day and may last from the first few weeks of pregnancy until the end of the first trimester. Although the exact cause of morning sickness remains unknown, hormonal changes, especially increased human chorionic gonadotropin (hCG) levels, are considered contributing factors.

The Role of Magnesium in Pregnancy

Magnesium is a vital mineral that plays numerous crucial roles in the human body, especially during pregnancy. It is involved in over 300 enzymatic reactions and supports various physiological processes, including:

  1. Muscle and Nerve Function: Magnesium aids in maintaining healthy muscle function and nerve transmission.
  2. Bone Health: It contributes to the development of the fetal skeleton and helps prevent maternal bone loss during pregnancy.
  3. Energy Production: Magnesium is essential for cellular energy production, keeping both the mother and the baby healthy and vibrant.
  4. Blood Pressure Regulation: Adequate magnesium levels help regulate blood pressure, reducing the risk of pregnancy-induced hypertension.
  5. Glucose Metabolism: Magnesium supports insulin function, assisting in managing gestational diabetes.

Magnesium and Morning Sickness: The Link

Some researchers have proposed a potential link between morning sickness and magnesium deficiency. Studies have suggested that low magnesium levels might contribute to increased nausea and vomiting during pregnancy. However, it’s important to note that morning sickness is a complex condition influenced by multiple factors, and magnesium deficiency is just one of them.

Can You Take Magnesium While Pregnant?

The safety of taking magnesium supplements during pregnancy is a common concern among expectant mothers. Generally, magnesium is considered safe when consumed within the recommended daily intake guidelines. However, pregnant women should exercise caution and consult their healthcare providers before starting any new supplements.

  1. Dietary Sources of Magnesium: Instead of relying solely on supplements, pregnant women can obtain magnesium from a well-balanced diet. Good dietary sources of magnesium include leafy greens, nuts, seeds, whole grains, legumes, and dairy products.
  2. Recommended Daily Intake: The recommended daily intake of magnesium during pregnancy varies based on age and trimester. On average, pregnant women are advised to consume around 350-400 mg of magnesium daily.
  3. Magnesium Supplements: If dietary intake alone is insufficient to meet the recommended levels, your healthcare provider may suggest magnesium supplements in appropriate doses.
Magnesium Supplementation During Pregnancy

When considering magnesium supplements, it’s crucial to prioritize safety and seek medical advice. The dosage and form of magnesium supplements should be determined by a healthcare professional based on individual needs and medical history. Excessive magnesium intake can lead to adverse effects, so moderation is key.

Other Remedies for Morning Sickness

While magnesium may play a role in reducing morning sickness, it’s essential to explore other remedies that can help alleviate this condition. Some natural approaches include:

  1. Ginger: Consuming ginger, either in tea, capsules, or candy form, has been known to help ease nausea.
  2. Small Frequent Meals: Eating small, frequent meals can prevent an empty stomach, which may trigger morning sickness.
  3. Hydration: Staying hydrated can help minimize feelings of nausea.
  4. Vitamin B6: Some studies suggest that vitamin B6 supplementation may help alleviate morning sickness symptoms.
  5. Acupressure: Applying pressure on specific acupressure points may provide relief from nausea and vomiting.

In the journey of pregnancy, morning sickness can be a challenging companion, impacting many expectant mothers. The possible connection between morning sickness and magnesium deficiency has been a subject of interest in recent years. In this comprehensive blog post, we will delve deeper into the symptoms of low magnesium in pregnancy, explore different types of magnesium to alleviate morning sickness, highlight the benefits of maintaining proper magnesium levels, and address concerns regarding excessive magnesium intake during pregnancy.

Symptoms of Low Magnesium in Pregnancy

Recognizing the symptoms of low magnesium during pregnancy is crucial to address potential deficiencies. While the signs can be subtle, they may include:

  1. Muscle Cramps: Frequent muscle cramps, especially in the legs, can be indicative of low magnesium levels.
  2. Fatigue: Magnesium deficiency may contribute to increased feelings of fatigue and weakness.
  3. Nausea and Vomiting: Morning sickness, characterized by nausea and vomiting, may be exacerbated by inadequate magnesium intake.
  4. Loss of Appetite: A decrease in appetite can be linked to low magnesium levels.
  5. Tingling or Numbness: Some women may experience tingling or numbness in their extremities due to magnesium deficiency.

What Type of Magnesium for Morning Sickness?

Various forms of magnesium supplements are available, and choosing the right type can be crucial for alleviating morning sickness symptoms. Some effective types of magnesium to consider are:

  1. Magnesium Citrate: Known for its high bioavailability, magnesium citrate is often recommended for pregnancy-related concerns like morning sickness.
  2. Magnesium Glycinate: This form of magnesium is gentle on the stomach and less likely to cause digestive discomfort.
  3. Magnesium L-Threonate: While not as common, magnesium L-threonate has shown promising cognitive benefits during pregnancy.
  4. Magnesium Oxide: Although less absorbable than other forms, magnesium oxide can be suitable for individuals prone to constipation.

It’s essential to consult your healthcare provider before choosing a specific type of magnesium supplement to ensure it aligns with your unique health needs.

Magnesium Spray for Morning Sickness

Apart from oral supplements, magnesium spray has gained attention as an alternative method to relieve morning sickness. The spray is applied directly to the skin, allowing for quick absorption. However, limited scientific evidence supports its effectiveness in managing morning sickness. Some women may find it helpful, while others may not experience significant relief.

Best Magnesium Oil for Pregnancy

Magnesium oil is another topical form of magnesium that is applied to the skin. It is called “oil” because of its oily texture, even though it does not contain actual oil. Similar to magnesium spray, there is limited research on the use of magnesium oil specifically for pregnancy-related symptoms. Always speak with your healthcare provider before using magnesium oil or any new product during pregnancy.

Magnesium Spray Pregnancy NHS: What’s the Verdict?

In terms of specific recommendations, the UK’s National Health Service (NHS) does not currently endorse the use of magnesium spray as a standard treatment for morning sickness during pregnancy. As with any new treatment, it is advisable to seek medical advice from your healthcare provider before using magnesium spray.

Benefits of Magnesium During Pregnancy

Maintaining adequate magnesium levels during pregnancy can offer several benefits:

  1. Reduced Risk of Preterm Birth: Studies suggest that proper magnesium intake may help reduce the risk of preterm birth.
  2. Improved Bone Health: Sufficient magnesium supports fetal bone development and helps prevent maternal bone loss.
  3. Lowered Risk of Gestational Diabetes: Magnesium plays a role in glucose metabolism, which can aid in managing gestational diabetes.
  4. Alleviation of Muscle Cramps: Adequate magnesium intake can reduce the frequency and intensity of muscle cramps.
  5. Blood Pressure Regulation: Maintaining proper magnesium levels supports healthy blood pressure, reducing the risk of complications like preeclampsia.

Too Much Magnesium During Pregnancy: Potential Concerns

While magnesium is essential for a healthy pregnancy, excessive magnesium intake can lead to potential concerns:

  1. Diarrhea: Consuming too much magnesium may cause diarrhea, which can lead to dehydration.
  2. Cardiovascular Issues: Extremely high magnesium levels can affect heart rhythm and cause cardiovascular disturbances.
  3. Interference with Medications: High magnesium intake may interfere with certain medications; hence, it’s crucial to discuss supplementation with your healthcare provider.


Magnesium plays a vital role in promoting a healthy pregnancy, and maintaining adequate levels can potentially alleviate morning sickness. However, the relationship between morning sickness and magnesium deficiency is complex, and additional research is needed to fully understand their connection. To ensure the well-being of both the mother and the baby, it is essential to consult with a healthcare provider before starting any magnesium supplements or alternative remedies. Embrace this transformative time with care and knowledge, prioritizing the health and happiness of you and your little one.

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