Earlier quoted context omitted.
From a book called Rework [1]: "When you want something bad enough, you make the time - regardless of your other obligations. The truth is most people just don't want it bad enough. Then they protect their ego with the excuse of time." I think virtually everyone in the UK has the means to eat healthy if they really want to. [1] http://www.amazon.com/Rework-Jason-Fried/dp/0307463745
The idea that everyone has time to do 'X' if they only wanted it bad enough is complete BS. For people that work two jobs, have a family to take care of, commute several hours, have a sick spouse and sleep there is no more time in the day. No matter how badly you want it. Unless you or the author of Rework know of a magical formula to make the day longer than 24 hours or how to operate on little to no sleep.
Move somewhere with a cheaper standard of living. Reduce expenses to where one spouse can stay home. Find another job closer. Unplug the TV already. Seriously.
Yes, if you want it badly enough you'll do it. I moved 1000 miles, changed jobs twice, worked 2 jobs at once for years, have a family to care for, cut the commute from 2 hours to 15 minutes, and operate on limited sleep. TV? about 4 hours a month. Every time I thought "I can't do this but I have to" I found a way. Now I work a dream job at a startup, support a family of 4, and live in a nice area.
Yes, we know of the "magical formula": use your brain and make it happen; you're the only one stopping you.