The results gleaned from this study also provide new insight into possible epigenetic therapies for various diseases. The switch-like epigenetic origin of certain diseases suggests that some may be driven entirely by epigenetics. It’s possible that we may be able to modify this process, suggests Pospisilik, particularly turning obesity on or off by supplementing diet, minimizing stress, or administering epigenetic drugs. “The hope is that we can permanently flip the system back to lean in one shot.”
http://www.whatisepigenetics.com/epigenetics-could-turn-on-an-obesity-switch/