Bob Greene is no stranger to the weight-loss industry. As Oprah's right-hand man, he's helped her stay at the top of her game for more than 10 years.  He's appeared on her show countless times to tout his Get With The Program plan, along with his Total Body Makeover and Best Life Diet.

If you're looking for a legitimate weight loss program, is there any better endorsement than serving as Oprah's personal trainer?

While many plans focus on either diet or exercise, Bob made it his goal to create a program that encompassed both, along with meeting the emotional needs of his clients. Bob likens the four-phase plan to having a personal 
trainer that guides you through the physical, psychological and emotional  obstacles that dieters are faced with.

The four phases are as follows.

Phase One: Truth, Commitment and Self-Control
With Phase One, the focus is on changing your thinking. Bob asks followers  to start off with simple steps like drinking water and moving more. Set your goals and sign a contract to show your commitment.

Phase Two: Revving Up Your Metabolism
During Phase Two, prepare to give your metabolism a much-needed boost by  adding aerobic activity into your daily regimen and cutting back on your alcohol intake.