Hollywood's attractive male and female stars are often seen as fitness idols.
They appear to maintain incredibly slim and toned bodies even as they age, while the rest of us struggle to keep up. However, the truth behind their perceived physical perfection is far from glamorous.
Actors are expected to completely transform their bodies in the blink of an eye for a big role. They subject themselves to punishing fitness routines and extreme diets that are ultimately unhealthy. Although they may achieve the desired superhero physique, the cost is high.
Now, let's delve into the experiences of actors who have gone to great and painful lengths to get ripped for a role. Click through the gallery to get started.