I used to believe this to be true until I cut out some really nasty things and saw big changes.
I've been running for about 5 years...except during pregnancy. I really became serious about it in the past 8 months. Six weeks ago, my husband and I decided to try and drop a few lbs for a trip that we are heading out for tomorrow. We cut out soda and fast food and just tried to be more careful about what we eat. I lost only 4 lbs, but my abs, butt, and thighs trimmed up significantly. My little low ab bulge, the result of 2 c-sections is finally flattened out again. I definately attribute it to cutting out crap that I thought was okay because I had been working so hard. I'm really seeing more muscle definition...what was under that layer of fast food induced fat!
I will add that I do reward myself quite a bit. We will do a Sonic ice cream snack a few evenings a week...just not all of the fried stuff that I had been eating.
It was just a little expirament for our vacation, but I think it will become a way of life for us. My husband has lost a lot of fat around his belly and butt. He just started back up working out, though. Men always seem to lose it faster!
Shannon