by Coco Somers
A review published in Nutrients identified seven major health concerns associated with inadequate magnesium intake: high blood pressure, Type 2 diabetes, osteoporosis, migraines, depression, chronic inflammation, and sarcopenia. Registered dietitian nutritionist Molly Knudsen reported that magnesium acts as a cofactor in more than 600 enzymatic reactions, supporting metabolism, muscle contraction, nerve signaling, and cellular function.
Magnesium is the fourth most abundant mineral in the human body and is essential for the healthy functioning of the heart, kidneys, muscles, and nervous system. Many adults fail to consume enough magnesium through diet, increasing the risk of chronic health problems.
Cardiovascular and Metabolic Health
Research cited in the review found that lower magnesium intake is associated with higher blood pressure. Magnesium helps regulate blood vessel function and supports healthy circulation. The U.S. Food and Drug Administration has issued a qualified health claim recognizing the potential relationship between magnesium consumption and reduced risk of hypertension.
Stress is also known to deplete magnesium stores. As magnesium levels fall, blood vessels may become more constricted, increasing the likelihood of elevated blood pressure and cardiovascular strain.
Magnesium also plays a critical role in glucose metabolism and insulin sensitivity. People with Type 2 diabetes frequently have lower magnesium levels than those without the disease. Studies suggest that magnesium supplementation may improve insulin function and help maintain healthier blood sugar and cholesterol levels.
Bone health, migraines, and mental well-being
Magnesium works closely with calcium and vitamin D to maintain strong bones. Long-term deficiency has been linked to increased fracture risk and reduced bone density. The mineral helps activate vitamin D and supports calcium absorption, both essential for bone formation and maintenance.
Researchers also found a connection between magnesium status and migraine headaches. People who suffer from migraines often have lower magnesium levels, and increasing intake may reduce the frequency or severity of attacks.
Mental health may also be affected. Low magnesium status has been associated with greater stress sensitivity and depressive symptoms. Some studies have reported improvements in mood among individuals who increased magnesium intake through diet or supplementation.
Inflammation and muscle function
The review found that low magnesium levels can increase oxidative stress and activate inflammatory pathways. Conversely, higher magnesium intake is associated with lower levels of inflammatory markers. Foods rich in magnesium, such as nuts, seeds, legumes, and leafy greens, may help support a healthier inflammatory response.
Magnesium is equally important for muscle function. It helps regulate muscle contraction and relaxation while supporting energy production. Research links higher magnesium status with greater muscle strength and a lower risk of sarcopenia, the age-related loss of muscle mass and function.
How to increase magnesium intake
Good dietary sources of magnesium include nuts, seeds, legumes, leafy green vegetables, whole grains, avocados, cocoa, fish, and dairy products. Recommended daily intake ranges from 310–320 milligrams for women and 400–420 milligrams for men.
Factors such as chronic stress, poor sleep, pregnancy, intense physical activity, and certain medications can increase magnesium requirements or contribute to depletion.
For those who struggle to meet their needs through food alone, magnesium supplements may help. Magnesium bisglycinate and magnesium chloride are commonly recommended because of their high absorption rates. Health experts advise consulting a healthcare provider before beginning long-term supplementation.
Maintaining adequate magnesium intake remains one of the simplest ways to support cardiovascular, metabolic, bone, muscle, and mental health.
