Review: Subclinical magnesium deficiency: a principal driver of cardiovascular disease and a public health crisis - PMC

The Nugget

  • Subclinical magnesium deficiency is a significant, often unrecognized health issue that increases the risk of numerous types of cardiovascular disease and is considered a public health crisis.
  • Optimal magnesium intake is crucial for preventing chronic disease, but modern diets and certain medications commonly lead to magnesium deficiency.

Key insights

Magnesium's Role and Deficiency Prevalence

  • Magnesium is essential for over 300 enzyme functions in the body, affecting heart, bone, muscle, and serum health. However, because serum magnesium does not accurately reflect intracellular magnesium levels, deficiency is frequently undiagnosed.
  • Subclinical magnesium deficiency, lacking overt symptoms but leading to chronic disease, is rampant due to factors like refined diets, chronic diseases, and medication use.

Impacts of Magnesium Deficiency on Cardiovascular Health

  • Magnesium deficiency contributes to hypertension, arrhythmias, arterial calcifications, and increased risk for thrombosis by upsetting the balance of other minerals in the body and affecting heart muscle function.
  • The deficiency can lead to severe cardiovascular conditions, including heart failure, myocardial infarction, and even sudden cardiac death, primarily due to its role in maintaining electrical and structural stability of the heart.

Magnesium Intake Recommendations

  • Despite its importance, the majority of modern diets fall short in meeting recommended magnesium intake levels, with processed foods significantly lacking in this mineral.
  • Supplementation and increased dietary intake of magnesium are suggested to achieve optimal magnesium status to reduce the risk of developing numerous chronic diseases.

Challenges in Diagnosing Magnesium Deficiency

  • Accurately diagnosing magnesium deficiency is complicated by the lack of reliable serum magnesium tests that reflect total body magnesium content.
  • Specialized tests, like the intravenous magnesium load test and measurement of ionized magnesium, can be more indicative of true magnesium status but are not routinely practiced.

Key quotes

  • "Subclinical magnesium deficiency increases the risk of numerous types of cardiovascular disease and should be considered a public health crisis."
  • "That an easy, cost-effective strategy exists to prevent and treat subclinical magnesium deficiency should provide an urgent call to action."

Make it stick

  • ๐ŸŒŸ Magnesium is a behind-the-scenes hero for heart health.
  • ๐Ÿฝ๏ธ Opt for nuts, seeds, and leafy greens to boost your magnesium intake naturally.
  • ๐Ÿ’Š Consider magnesium supplementation, especially if you're at risk for cardiovascular diseases.
  • ๐Ÿ›‘ Processed foods are magnesium thievesโ€”eat whole foods for heart health.
This summary contains AI-generated information and may have important inaccuracies or omissions.