Nutrology zen natural™: relax, recover & restore did you know? low magnesium levels are associated with stress, adrenal fatigue and muscle cramping, zen natural works to restore healthy magnesium levels support: stress , adrenal health , ph balance & sleep includes 400 mg magnesium, 25 mcg vitamin d & 50 mg l-theanine made in a cgmp certified facility. Nutrology zen natural healthy - 30 veggie caps (30 servings)