If you "diet" you will fail.  You will fail because you never changed anything in the long term, and as soon as you go back to what you were doing the same result will come.  What else can you reasonably expect?

If you have been reading the newspaper recently, you will have come across some startling new nutrition advice. A much hyped new study, conducted with just 150 participants, calls for us to “embrace fat”—even the saturated kind. The alleged benefits? Weight loss and, most incredibly, healthier hearts.

No kidding?  Well, he thinks it is kidding.

In the two centuries during which these diets have been promoted, there have been hundreds of studies comparing low-carb to low-fat diets. One would think that by now it would be clear which was superior if there really was a difference. But if you take all of these diet studies, and analyze the enormous body of data they produced, there is no proven difference between them as far as weight loss is concerned. In fact, another such analysis was published the day after the over-hyped low-carb study with this same conclusion.

If you're looking for a diet, that is, something faddish you can do that will produce result "X", you can find it whether it's straight starvation or something else.  Then there's this:

More to the point, however, is that this most recent study really did not actually prove that low-carb diets are superior. The low-fat diet in the study was not that low in fat, and the low-carb group ate significantly fewer calories.

Well duh.

See, people keep missing this -- it's a lifestyle choice, not a diet.

Do you eat fewer calories?  Yes.  You want to know why?  Because you're not hungry, that's why.

There's no magic to it.  When you're hungry if there is food available you'll eat, all things being equal.  Oh sure, you can apply extreme willpower to counteract that, but will you succeed?  Probably not at all, and almost-certainly not for long.

So what's the secret?  It's easy -- don't be hungry.

That's what low-carb does, you see.

Sugars and things that quickly convert to sugar produce a "high."  Ask any parent about their kid being jacked up on sugary things.  Well if you've all seen this why do you think it doesn't happen to you?

And what comes after that when you "come down"?  The crash, of course, and what do you want?  More of what made you high.

Is it really any more difficult to understand than that?

Nope.