Booze-free Ben Packs on 48 LBS

MOVIE superhero Ben Affleck is busting out of his Batman suit after packing on nearly 50 unhealthy pounds, gobbling food like crazy while kicking his booze addiction.

Now pals fear the 6-foot-4 heart throb, who completed a rehab stint on March 14 and has ballooned from 208 pounds to a chunky 256, is eating himself to death.

Top New York diet doctor Stuart Fischer tells GLOBE switching addictions is not uncommon among people who have “addictive personalities” — meaning they “rely on substances of one type or another.”