You would be amazed at the things that can affect the success of your diet. Don’t fool yourself into thinking it’s all about willpower. That’s what a lot of diet commercials would have you believe. For instance, you could be taking something like Phentirimine to suppress your appetite when what you really need is something like Ambiotol to help you sleep well. The quality if your sleep will affect everything from your mood to a million other things, so make sure you are getting everything you need—including enough nutrients—before you start removing things from your diet.