I would say half the problem is listening to to many people and l don't mean that as disrespectful to those that have posted,

I am lucky that l have a personal trainer and l did follow his advice to the letter and lost 30kg in 9 months, ran a marathon etc etc he highly recommended a Paleo/Primal diet which pretty much equates to no carbs or dairy maybe the odd complex carb, to bring this into my initial point whilst following this and clearly loosing weight and gaining muscle l had people telling me to do countless other things try different things etc etc, once you know what works for you and our lifestyle/routine then stick to it.

http://www.paddywarwick.com/before-and-afters/mike/

This is mine, through following his suggestions, when training in the gym l was a half portion protein shake before and a full portion after eating within 30 mins and eating the protein on the plate first, always have veg with each meal and breakfast within 30mins of waking.

As l understand running eats muscle not really fat, if you can run can you do leg exercises in the gym ? I would also assume you can do body weight exercises? lungs, squats, mountain climbers etc? This is a lot of what l did.

Best of luck

Mike