What are signs and symptoms of magnesium deficiency?

Magnesium deficiency, also known as hypomagnesemia, can lead to various signs and
symptoms that affect different systems in the body. The severity of these symptoms can vary depending on the extent of the deficiency. Common signs and symptoms of magnesium deficiency include:

Muscle Cramps and Spasms:

Muscle cramps and spasms are a common early sign of magnesium deficiency. They can occur in various muscle groups.

Muscle Weakness:

Weakness in the muscles can develop, affecting your physical strength and endurance.


Magnesium is involved in energy production, so low magnesium levels can lead to unexplained fatigue and low energy levels.

Nausea and Vomiting:

Gastrointestinal symptoms such as nausea and vomiting may occur.

Loss of Appetite:

A reduced desire to eat, leading to decreased food intake.

Abnormal Heart Rhythms:

Irregular heartbeats or arrhythmias can result from magnesium deficiency and may lead to palpitations.

Tingling or Numbness:

Some people may experience tingling or numbness, often in the extremities.

Personality Changes:

Mood changes, including increased irritability, anxiety, or depression, can be associated with magnesium deficiency.

Difficulty Swallowing:

Dysphagia, or difficulty swallowing, can occur in severe cases.


Low magnesium levels can affect calcium regulation, leading to hypocalcemia (low calcium levels). This can cause symptoms like muscle spasms and tetany (sustained muscle contractions).


In severe cases, magnesium deficiency can lead to seizures.


Low magnesium levels can also cause low potassium levels (hypokalemia), which may result in muscle weakness, fatigue, and heart rhythm abnormalities.


Prolonged magnesium deficiency can contribute to decreased bone density and an increased risk of osteoporosis.

It's important to note that magnesium deficiency can be caused by various factors, including inadequate dietary intake, gastrointestinal disorders that impair absorption, certain medications, and certain medical conditions. If you suspect you have a magnesium deficiency or experience the symptoms mentioned above, it's crucial to consult a healthcare professional for proper evaluation and diagnosis. A healthcare provider can recommend the appropriate treatment, which may include dietary changes and magnesium supplements as needed.

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