Most of the people that I coach are a bit older, so they are very familiar with this issue.  Typically small tweaks and a little bit of experimenting will do the trick.  The human bodies desire to maintain fat is rooted in the past when food was not so plentiful.  We were programmed to eat as much as we can whenever we can as a precaution against famine.  That being said, some people have bodies that just are not willing to let it go once it has arrived.  Thats where eating smaller, more frequent meals can help.  When you break up 3 daily meals into 5 or 6 smaller meals, you are sort of tricking your body.  When your body starts to become hungry, it will deliberately slow your metabolism in fear that there is no food.  By regularly eating the smaller more frequent meals, you are telling your body to keep your metabolism up, theres plenty of food.  And you should start it within minutes of waking up in the morning.  Even something as small as a grape and a glass of water will jump start your metabolism first thing in the morning.    In addition, I would highly recommend some additional cross training.  My favorite is mountain biking because it can be a whole body workout, but any resistance training will crank up your metabolism as well.  Last but not least, pay attention to the amount of carbs you are taking in.  I have found that lowering my carbs a small amount and increasing my protein intake makes a huge difference.  Everyone is different, but these are things that have worked for me.  Keep in mind that I am not a dietician, but have experimented and found what really works for me, maybe it can help you as well.  Good luck and keep me posted how you are doing.