Magnesium
Magnesium is an essential trace element for cellular homeostasis ; it seems that its presence in foods is rather widespread, especially in vegetables, and in physiological conditions no food deficiencies are known ; the magnesium deficit (induced or in any case secondary to other disorders) manifests itself with an alteration of the metabolism of calcium , sodium and potassium , which leads to muscle weakness, impaired cardiac function and tetanic crises .
In healthy subjects, the recommended magnesium ration is about 3 or 4.5 mg/kg, however, it has emerged that mild magnesium deficiencies can be completely asymptomatic and that, at times, its integration can reduce symptoms related to premenstrual syndrome and especially the soreness associated with breast swelling.