[MatthewPhillips]

Most diets are based on tricking you to eat fewer calories. Eating fewer calories is the only real proven way to lose weight. So-called "fad" diets just give you a strategy so you don't feel like you're starving yourself. Some people are successful with brute-force calorie cutting, or strict calorie watching, but there's nothing wrong with following a plan either, even if it is a "fad".

[c1u]

Agreed! I enjoyed eating paleo/low-carb for a while, but now I eat IIFYM and get the same or better results, because no food is off limits If It Fits My Macros. :)

In the end ALL diets work, but the best diet is the one you can stick with.