Going on a diet is always hard to do. Nobody wants to cut back on the food, because it goes against our natural instincts. Everybody wants to be free of having to worry about the weight, but the truth is... there is no easy escape. However, it is entirely possible to learn how to manage your own eating habits in such a way that you will be able to maintain a nice weight real easily.
If you go on a diet for a few weeks and you manage to get significant results, good for you. But don't make the mistake that so many have made before you. Don't go back to your old eating habits and gain all that weight back. It's not necessary to go through life yo-yo'ing. The best way there is to manage your weight, is to adopt a healthy weight loss diet that you can actually stick to for a few weeks. A few weeks later, when you stop getting results, you need to go back to eating a normal amount of calories again. You can simply stick to your weight loss diet, but eat more of the foods that are on that diet. This way, it becomes a normal, healthy diet.
You need to have all the nutrients that your body need in your diet. There is no reason to completely switch diets when you decide to either start or stop losing weight. Your body always needs all the essential nutrients. So you should always be on a healthy diet anyway! When you decide you want to shed a few pounds, you simply cut away some calories off all the foods in your diet plan.
Losing weight always comes down to expending more calories than you take in. For the best results, you should always do this by making your portions smaller. Just never cut any one specific food off your diet, because chances are you will lose a valuable nutrient that way!