Magnesium: sources, forms, and safety
By the VitaCoreGuide Editorial Team · Last reviewed September 8, 2026
Magnesium is an essential mineral involved in normal muscle, nerve, energy, and bone functions. It occurs naturally in foods and in several supplement forms.
Food sources
Leafy green vegetables, legumes, nuts, seeds, whole grains, and some fortified foods provide magnesium.
Comparing supplement forms
Products may use citrate, glycinate, oxide, or other forms. Focus on the amount of elemental magnesium per serving, serving size, other ingredients, directions, and tolerability—not the compound weight alone.
Important precautions
High supplemental amounts can cause unwanted effects. Magnesium can interact with some medicines, and people with kidney problems need particular care. Ask a healthcare professional before use if these issues apply.
Sources and further reading
Important
This guide is general educational information, not medical advice or a diagnosis. A qualified healthcare professional can help you evaluate individual needs, conditions, medications, pregnancy, or supplement use.
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