I'm looking for a brand of ZMA that garuanteed works. I used to buy one from a local chain of health stores, but due to not many people buying it they stopped sales of this product. After that I went on another ZMA product, which unfortunately doesn't work, i.e. I don't get the deep sleep benefits from it (although I might get the minerals in it).
Is there a brand which has the garuanteed sleep benefits so I feel great when waking up? Now Foods a good brand or some others?