South Beach has worked for DH and my MIL
it's really easy - it's mostly just eating healthy
I got a cookbook off of Amazon and make the meals
my SIL/BIL are doing the Advocare (I think that is how it is spelled) cleanse...you take suppliments and eat healthy but can't have any dairy for fourteen days I think it is (people sell Advocare - it's kind of a chain but some on SIL's friends have lost six pounds in just a week)