Is magnesium a form of vasilodator?

Magnesium: Yes -- magnesium relaxes vascular smooth muscle, and can relax skeletal muscle. In toxemia, magnesium is given intravenously to help lower bp and mute seizure risk. Dietary magnesium is known to be a natural adjunct to other bp lowering interventions, including salt restriction, weight loss, less sugar, less fat, and smoking cessation.