Can anyone tell me the effectiveness of these products (ie: Xenadrine EFX) since they can no longer contain ephedrine? I was trying to read through the sticky read, which had a lot of information, but I couldn't find much on how effective these new supplements are.

I'm wondering if it's even worth taking.

Been on atkins for a while, on and off...lost 20 pounds the first time around and now cannot get into ketosis now matter how hard i try. i'm thinking my body has gotten used to lc'ing, possibly resisting.