Sylvester Stallone admits he became bulimic while preparing for Rocky roles
Sylvester Stallone told The New York Times recently that he developed bulimia and used steroids during his physical transformations for the Rocky film series.

Obsession with body image
Stallone described his approach to fitness as an obsessive form of body worship. He aimed to design a physique that was feral and aggressive rather than smooth like Arnold Schwarzenegger. This mindset led him to reach 2.6 percent body fat while filming Rocky III.
Physical limits and drugs
The actor stated he could not keep food down at his lowest weight. He noted that maintaining such a shape for six months requires additives and drugs. Stallone emphasized that this process is not the same as being a junkie.
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