I'm always kind of suspicious of new weight loss ideas that come out. All the diets, pills, shakes etc. I remember when fen-fen was a big deal, I had a cousin who took it and now has serious health problems and cannot have children, so I always wait to see what happens a few years down the road before believing something is ok. I think Ephedra is like the new fen-fen, though I admit I don't know much about it. I think if I ever needed to lose a lot of weight I'd go with those diet shake drink types, they sound yummier.