When you want to lose weight, we recommend to start with a sustainable diet, or a diet that you can maintain on the long-term. In this way you avoid that you are getting back into old habits and gain weight again. The low-carbohydrate Atkins diet can help you! On Atkins you are not counting the calories, you reduce the number of carbohydrates in your diet. You use proteins and fats as a primary fuel. To cut down on carbs your body gets energy from excess body fat rather than from excess carbohydrates. In other words, your body is getting into a fat burning machine.
Here you can read more about how and why the Atkins diet works.