I know it, I just need to do it. I have preached it before "You can't out run calories." I need to get back on track with good-ol MPF and tracking my calories. Take a look at my weight history. I was able to loose a solid 100lb about 6 years ago. Then slowly gained (most of it) back. Several life changes, but a lot of exercise has done me no good. Last summer I got into cycling. That helped, but still not able to keep up with my consumption. At the start of it all, I was logging what I ate, and the weight fell off! Being a faster runner (was really into jogging/running) was more of a by product (looking back at it now).
One way I like to look at it:
Consumption (calorie intake)= weight loss/weight gain
Exercise= modify your physical appearance