If it motivates you to exercise any...keep in mind that you can lose "pounds" and dress/pants sizes by diet alone...but ONLY exercise is going to give you a firm, fit body. Diet alone will not get rid of saddlebags, flabby inner thighs, a poochy tummy, and the like. Only exercise will firm you up, and improve your shape.
There are plenty of *thin* women who go out in bikinis...and have flat behinds, saggy bellies, and even though they are a size 6 or 8...are NOT in shape. It makes a HUGE difference.