He's right about handling foodbased nutrients best.
Many nutrients are offered at too high concentrations or in the wrong formulations to give a gentle, positive reaction.. So when folks reccommend a distinct formulation like magnesium chloride, take note of the details! Personal experience is a wonderful thing.
Yep! I've given magnesium to one of my friends, his BP levelled out very quickly. Be careful of bloodthinning prescriptions.