Andy Reed made the comment after new research from the British Medical Journal found that living near a main road can cause people to gain weight.
The study into noise pollution also found that living under a flight path doubles the risk of obesity.
Mr Reed, from Christian sports thinktank Saje Impact, told Premier: "Don't be daunted, you don't have to rush off and join a gym, but just build up that level of physical activity so that everything becomes comfortable and just make it part of our daily lives."
"Probably there's an element of truth in many of these [reports], there isn't one single cause for this obesity epidemic that we're currently suffering in this country, there are a whole series of reasons."
Listen to Premier's Hannah Tooley speak to Andy Reed here:
