What should I know about Magnesium Ernährung?

Magnesium is a crucial mineral involved in over 300 enzymatic reactions, including muscle and nerve function, energy production, protein synthesis, and blood pressure regulation. Good dietary sources include green leafy vegetables, nuts, seeds, whole grains, and legumes. Deficiency can cause muscle cramps, fatigue, and arrhythmias. Supplementation may be beneficial for certain groups (e.g., those with deficiency, athletes, people with type 2 diabetes), but excessive intake from supplements can lead to diarrhea and, in severe cases, cardiac issues, especially in kidney disease. Evidence for magnesium in conditions like migraine prevention or sleep improvement is moderate but not conclusive. The provided context does not contain specific information on magnesium; this answer is based on general medical knowledge. Evidence grade: mechanistic / human-moderate.