I tried Xenadrine ephedra free and it didn't work at all whatsoever. I know a few people who said the same. Seriously, diet pills don't work and they are not good for you, even if they claim they won't hurt you there is usually something in there that might be harmful later. Doing low carb and exercise works best. I take a multivitamin and flaxseed oil. My mom is taking Atkins Dieter's Advantage as a supplement and she said she likes it.