During a famine your fat neighbor will survive longer. Storing fat is more efficient than building muscle. Maintaining fat is more efficient than maintaining

During a famine your fat neighbor will survive longer. Storing fat is more efficient than building muscle. Maintaining fat is more efficient than maintaining muscle. And metabolizing fat is more efficient than metabolizing muscle. So while it's cool that you can do pull-ups, your fat neighbor will easily outlast you in a famine unless you're willing to eat him.