I wish I could just eat some magic fruit and my weight would disappear! Now, don't get me wrong, in moderation, a quick snack of an apple or perhaps grapes and nuts would boost the metabolism while allowing you not to have ingested too many calories. But portion control and a fibrous diet are much more important than just eating plenty of fruit as if that will help you lose weight, as Erin mentioned above.
I myself have very little room to talk. I understand how it works, but have a hard time incorporating it into my life. But, if the person can make sure that they are not taking in too many calories, the fibrous fruit and veggies will definitely help them to shed the weight.
But I cannot overstate the fact that if you eat a bag of apples because they will "help you lose weight", it isn't going to help. Fruit has simple sugar and will cause fat in the body. If you have a ton of simple sugar and then follow that up with a massive amount of fat and protein, the body will only process the simple sugar and the rest will go to the fat in the body.
Here comes the pontification. You can stop reading here if you want, but I feel like I should add this.
Here is how the body works. It wants to digest the easiest thing possible. It will ALWAYS go for that first. The easiest thing to digest is simple sugars. They break down easy, and give you instantaneous energy. Complex carbohydrates and proteins are much more difficult for the body to digest. So much so, that it won't process most protein into energy. It will make it into fat or into muscle, depending on whether your muscles needed it that day or not. But it isn't really made into energy. This leads to the exact reason why our body CRAVES sugars and starches. It knows that it can digest it better. It learns from past experience that whatever the item is, (fruit, candy, chocolate), it was easy to digest, gave the body quick energy and was broken down quickly. So, the body BEGS for this food. It powerfully cries out for simple sugar, for those things that will digest as easily as possible. Also, the same thing with caffeine. If you give your body caffeine, it realizes that this stimulant makes it not have to create the necessary hormones to wake you up. So, it tells you that you need it. It does this by headaches. It doesn't want to make its own, so it forces you to take it in.
The point here, is this: our body WANTS to be fat, it wants storehouses of energy in it, and it will push you until you give in. This is how addiction works. And, because of this, we have to fight our urges if we want to lose weight. We have to fight against everything our body is telling us. When we realize that our body does not have our best interests at heart, then we can make the determination to fight it.
I hate that my body pushes me toward simple sugars and I will always fight it. Period. I don't always win the battle, but our will power must be more than our cravings. Of course, some folks don't seem to have the lack of will power that I have. But if we can, we can begin winning the battle, even if we have an uphill road ahead of us.
There ya go. This is the story of us vs. our bodies. I hope this helps a bit, but at the same time, I need to steel up my resolve every once in a while and this is one way that I can do that.
Thanks for listening, and I hope this will help.