Factory food is so toxic and addictive that for some people getting onto a fad diet for a while is one of the few ways to kick the habit, which is how I interpret the OP's topic and what the film is about: raw vegetable juicing was a way for the author and the trucker in the film to change their habits, which is very difficult to do.What if you stop digging into weird woo-woo new age theories and actually start doing what you know you're supposed to be doing all along? People make excuses and delve into information to avoid action. You know exactly what to do. Work out, exercise, go for walks, eat moderate, skip the bullcrap food such as M&M's, coke, fries, and stop looking into all this weird extremist stuff to distract yourself.
Once you're past that hurdle, you can put the fads behind you and eat more normally, while selecting foods from a different place than where you've been conditioned, which is stuff that's advertised on TV.