I never saw the goal as eating healthy all the time. Just more of it can already improve things dramatically.

For example, I absolutely love good pizza (with the emphasis on good), and just get it whenever I crave it because I know that overall, I'm doing more than fine. I only ranted about Big Macs earlier because that particular product is crap; some restaurants here produce just absolutely fantastic cheese burgers and I enjoy them every now and then.

But I also enjoy a good Pho, which is basically just hot water with some rice noodles, and an immense amount of flavor.

I think the trick is just finding the balance of these things, not some form of overall abstinence.