Description
Magnesium is involved in hundreds of processes throughout the body, from muscle and nerve function to energy production and heart rhythm, yet deficiency often goes unrecognised.
About the Magnesium Test
This test measures the level of magnesium in your blood. Magnesium supports muscle and nerve function, energy metabolism, bone health and a steady heartbeat. Low levels can cause muscle cramps, fatigue, and in some cases affect heart rhythm, and may occur with poor diet, digestive conditions or certain medications. Testing helps identify a deficiency that is often overlooked but readily corrected.
Preparation and turnaround
A quick venous blood sample is taken with no fasting generally required. Results are usually available within one to two working days. If your level is low, your doctor can advise on dietary changes or supplements and consider any underlying cause.
Frequently asked questions
What are the signs of low magnesium?
Muscle cramps, fatigue and, in some cases, changes in heart rhythm can be linked to magnesium deficiency.
Who is at risk of deficiency?
People with poor diet, digestive conditions affecting absorption, or those on certain medications are at higher risk.
Is fasting required?
No fasting is generally required for the magnesium test.
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