Does the Adkins diet only work the “first time” you do the diet? I followed the Adkins diet several years ago and successfully lost 25lbs. I gained 10 back and have tried to follow the Adkins diet again with no success. Several people have told me it only works once, and then you miss your shot. I find this a little upsetting and don’t understand that. Is this true?? Or do I just need to try a little harder with staying focused?