"According to Dr. Joseph Mercola, as many as 80% of American adults may suffer from some degree of adrenal fatigue at some point in their lives." One should regard anything from Mercola with great caution, or better yet spend your energy elsewhere. Mercola is famous for i) combining medical knowledge with quackery ("adrenal fatigue", as discussed in the first post). ii) campaigning against medicine, except his "special" version iii) having a practice directed to patients with high disposable income offering expensive water (homeopathy), chiropractic (pt with a side possible spine damage), "emotional freedom technique" and digestive enzymes for pets. iv) promoting his brand of cure-all herbs and supplements, which are good for everything you might imagine ails you* Far below, in thinner type, one sees where the asterisk leads: *"This product is not intended to diagnose, treat, cure or prevent any disease." What kind of doc has a website with branded cure-everything products and a disclaimer? What kind of doc has an FDA order to stop making false and deceptive statements?