This is a very interesting diet concept that I think may work for many people. It is known as the 'food theme' diet and allows you to eat the foods you like, while losing a good amount of weight naturally. The diet is centered on eating less overall rather than eating the healthiest and natural foods you can find, although this does help as well.
The basic concept of the diet is to choose a theme of food and to stick to that particular theme for a day. For example if you choose a theme of lemon, you should only eat foods with lemon in them for that day. Why? The concept behind this new diet is actually quite simple. Many people eat a lot because they are not completely full, even if they are not hungry. The body naturally likes to eat many different types of foods. This is one of the main causes of overeating. Even though you have eaten enough of a certain type of food and are no longer hungry, you still want to eat more of a different type of food. This new diet forces you to stick to a certain group of foods so that you cannot eat different types of foods and thus, you eat less and lose weight. This diet has been tried in many scientific case studies and has proven to be effective.
Now, if you choose this diet, just because you eat less, you still have to be aware of what you are eating and keep track of the amount of calories you are consuming daily. If you choose food categories such as 'chocolate' or 'cake', this diet is obviously not going to be effective.
The Bottom Line of this Diet : Choose healthy foods that you like to eat as your daily 'food theme' and make sure that you alternate your theme daily to get some variety in your diet. If you choose the same food group day after day, the diet will get very bland and mundane, and chances are you will not continue with it and it will not help you lose weight. Also, every now and then, you may want to take a break from your diet to eat some desert or a somewhat unhealthy food, but still try to make it correlate with your theme for the day. For example, on a day when you want to eat pizza, make your food theme 'tomatoes'.