Food or exercise?

Here is an interesting article on The Times website ( a UK newpaper) about new research into why we are getting fatter and whether exercise is the best way forward or rethinking our dietary needs.

American children have grown on average 9lb heavier since the 70's. It appears that to return to our leaner 1970's level in the US, children would have to reduce their calorie intake by about 350 calories a day..... cut that soda out and Bob's your uncle.... oh, if it were that simple, but it would be a start.

Please read it, there is too much interesting and thought provoking information in it for me to paraphrase and I wouldn't do it justice.