Dieting and workouts will only get you so far if you want to lose weight. What is more important is unfaltering dedication, as what these 'big losers' have proven.
STOMPer BigBoy, who sent in these pictures, said:
"The reason why many people fail to lose weight is because they give up too easily after not seeing much improvement after a few months.
"I think what's more important is the sheer determination and patience.
"The people in the photos have all proven that losing weight is not impossible, no matter how big you are.
"But you need an iron will to make it happen."
View all the photos of amazing body transformations in the gallery below.