It's the last diet you'll ever need.

That's the promise made by Dr. Ian Smith, creator of the Fat Smash Diet. Made famous by VH1's Celebrity Fit Club, Dr. Smith is quick to point out that the program isn't just for the rich and famous -- it's for everyone. Unlike other complicated weight-loss plans, Dr. Smith promises that dieters will move through the 90-day program with ease.

Celebrities such as Chastity Bono, Tempestt Bledsoe, Kelly LeBrock and Young MC have all shed their spare time with Dr. Smith's common-sense approach to slimming down.

There are no quick fixes. Instead his goal is to help individuals make lasting changes that will be followed for life. Using a four-phase approach, the Fat Smash Diet carries the dieter through much-needed changes. The first phase is the detox.

For nine days, the diet is comprised of almost all fruits and vegetables. In doing so, the body is cleansed of all the toxins that have built up in the system. You'll eat four to five nutrient-rich meals a day. There is also a psychological component where people are taught to reduce the levels of stress in their lives. Phase one is the most difficult part of the Fat Smash Diet.

Phase 2, The Foundation, teaches dieters to "smash" their bad habits and create healthier behaviors in the interim. The name of the game is still the same -- don't overeat, load up on fruits and vegetables, don't skip 
meals and continue to stay active.