Lose belly fat by running?!?

My dad was a bodybuilder when he was younger and i have started lifting with him as my trainer. I weigh about 220 and most of ot is in my gut. He tells me that if i run 2 or 3 miles a day i will lose it in no time. I was just wondering if someone has tryed this and it works or if someone who knows what they are talking about. Thanks.