Description
Measures magnesium inside red blood cells — a better reflection of intracellular magnesium status than standard serum magnesium.
Magnesium supports energy production, muscle and nerve function, heart rhythm, blood pressure regulation, glucose metabolism, and healthy sleep. Standard serum magnesium may appear normal even when intracellular magnesium stores are low.
This test may be helpful for:
Fatigue Muscle cramps or twitching Headaches or migraines Poor sleep Heart palpitations High stress Blood sugar concerns Blood pressure concerns Low potassium or calcium concerns Long-term PPI or diuretic use Athletes or heavy sweaters
What is tested?
Magnesium, RBC
Fasting required?
No fasting required.

