Doctor's Assessment Included
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
Magnesium
Magnesium is critical for muscle contraction, energy metabolism, and recovery. Athletes may have increased needs due to sweat losses and higher metabolic demands.
What It Measures
This test measures the level of magnesium in your blood serum. Since most magnesium is stored inside cells and bones, serum levels may not fully reflect total body magnesium status.
Why It Matters
Magnesium supports heart rhythm, muscle relaxation, nerve signalling, and bone health. Deficiency is common and may be associated with muscle cramps, fatigue, and cardiovascular issues. Consult your healthcare provider for personalised advice.
When to Test
Testing may be recommended if you experience muscle cramps, weakness, heart palpitations, or sleep difficulties. Athletes and those with restricted diets may benefit from regular magnesium monitoring.
Symptoms
Low Levels
High Levels
Recommendations
Male
Low magnesium may cause muscle cramps, fatigue, and heart palpitations. Consider magnesium glycinate supplementation (400 mg daily).
High magnesium is rare but may indicate kidney dysfunction or excessive supplementation. Reduce supplement intake.
Female
Low magnesium may cause muscle cramps, PMS, and fatigue. Consider magnesium glycinate supplementation (300-400 mg daily).
High magnesium is rare but may indicate kidney dysfunction or excessive supplementation. Reduce supplement intake.
Lifestyle Tips
Include magnesium-rich foods such as dark leafy greens, nuts, seeds, whole grains, and dark chocolate. Reducing stress and limiting alcohol and caffeine may also support magnesium levels.