by JBesson » Mon Feb 14, 2011 8:56 pm
Small changes in your diet alone might help you get some what there, but you'll need to implement some form of cardiovascular activity. You don't need to join a gym to do that, but you'll need to train somehow. Losing 30 kg (66 lbs) in four months isn't impossible. Be careful, however, that much loss all at once can put a lot of stress on your body.