Magnesium is an essential mineral involved in more than 300 enzymatic processes and supports healthy bones, muscles, nerves, and immune function. For bone health, it helps regulate calcium and supports bone mineralization, while low magnesium levels may be associated with reduced bone mass and a higher risk of fractures. Magnesium-rich foods such as seeds, nuts, and leafy greens can contribute to adequate intake, alongside calcium and vitamin D.

Magnesium also plays a role in blood sugar regulation and insulin sensitivity, with low levels associated with a higher risk of type 2 diabetes. It is also involved in neurotransmitter regulation, including serotonin and GABA, which influence mood, relaxation, and sleep. Maintaining adequate magnesium intake through foods such as beans, whole grains, dark chocolate, nuts, and leafy greens may support overall wellbeing, while limiting excessive caffeine and alcohol can help maintain healthy magnesium levels.

Magnesium can also support digestion because certain forms draw water into the intestines and help relax digestive muscles, which may provide short-term relief from constipation. Symptoms associated with low magnesium can include muscle cramps, fatigue, headaches, and mood changes, although deficiency should be evaluated by a healthcare professional. Magnesium supplements, including different forms such as glycinate, citrate, or oxide, may have different uses, so people with medical conditions or those taking medications should consult a doctor before using supplements.