Who said it doesn’t work? Did you even read the posts? You realize the A part in ZMA is vitamin B6? It is responsible for vivid dreams because it enhances the pathway through which serotonin is synthesized. This has been studied numerous times. It isn’t magical. Many people, because of their diets, are also deficient in zinc and magnesium, hence supplementing with those will help, but no more than improving diet to make-up for the inadequacies would as well. Again, nothing magical about the ZMA–B6 has proven time and time again to cause very intense dreams because of its effects on serotonin and many people are zinc/mag deficient because of poor diets. Supplementing with those helps, who would have thought?
I would hate for some newbie to read this post and think he needs to take some overpriced “ZMA” when he could buy the ingredients separately and save hundreds of $$ over the course of years, not to mention have an understanding of WHY things work.