Magnesium vs Calcium

Evidence-based comparison of Magnesium and Calcium — absorption, dosage, safety, and which is best for your needs.

Reviewed by: Supplement Hub Editorial Team · Category: Mineral · Updated:

Magnesium

Mitochondrial support: Enhances mitochondrial efficiency and biogenesis; ATP production: Supports cellular ATP synthesis

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Calcium

Bone mineralization: Supports bone density and mineral deposition; Neuromuscular relaxation: Supports muscle relaxation

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Detailed Comparison

	Magnesium	Calcium
Category	Mineral	Mineral
Mechanism	Mitochondrial support: Enhances mitochondrial efficiency and biogenesis; ATP production: Supports cellular ATP synthesis	Bone mineralization: Supports bone density and mineral deposition; Neuromuscular relaxation: Supports muscle relaxation
Safety	Magnesium that is naturally present in food and beverages is not harmful and does not need to be limited. In healthy people, the kidneys can get rid o	Some research suggests that high calcium intakes might increase the risk of heart disease and prostate cancer. High levels of calcium in the blood and

Which Should You Choose?

Magnesium may be better if: Mitochondrial support: Enhances mitochondrial efficiency and biogenesis; ATP production: Supports cellular ATP synthesis and mitochondrial energy outp

Calcium may be better if: Calcium is essential for bone health and many bodily functions. Most people can get adequate calcium from diet, but supplements may be needed for those who avoid dairy.