Magnesium
Magnesium is a mineral the body uses for muscles, nerves, bones and energy production.
Magnesium is a mineral the body uses for muscles, nerves, bones and energy production. It takes part in more than 300 enzyme processes, including those that release energy from food. Most magnesium is stored in bones and cells, and only a small share circulates in the blood, which is what this test measures.
Diet is the main source, and a diet low in whole grains, nuts and greens gives less magnesium. Alcohol, heavy sweating, some medicines such as acid-reducing drugs (PPIs) and diuretics, and stress can lower it. Large supplement doses can raise it.
Foods that help
Nuts, seeds, whole grains, legumes, dark leafy greens, avocado and dark chocolate are good sources of magnesium.
Foods to limit
Large amounts of alcohol and a diet built on refined, processed food give little magnesium. Very large supplement doses are not needed when the diet is varied.
Track it through the year
One value is a snapshot. Following it up shows whether what you changed is working.
Related markers
Educational information only — not a diagnosis. Every result is checked against safe limits, and anything critical is escalated for follow-up.
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