First of all, keep in mind that any diet is very individual. If your girlfriend has lost weight by eating coffee and crackers, does not mean that you need to immediately adopt its best practices. Maybe your girlfriend too healthy body if it made such a mockery. We agree to immediately correct any diet must meet several requirements.
Firstly, it must be balanced. Secondly, it should not cause you discomfort. Third, you should not be a contraindication to it for health reasons. And finally - the diet should fit your lifestyle and age.
The meal plan that fits the girl of 25, it is absolutely not suitable for ladies at 40. If you are active in sports, will help you choose a diet coach. The most sensible thing to choose a diet consult a professional dietitian. He can make a diet menu for you individually, taking into account all the nuances and subtleties. The best and the right diet - it is a reasonable nutrition throughout life. No matter how boring it may seem to you, more efficient way is not yet invented.
All diets provide quick but short-term effect, if immediately after you return to the old way of life. Do you want to save the results achieved, choose a diet that can stick in the future. Such a sensible diet, there are many. The main difference from the short-term diets - the right balance of fats, proteins and carbohydrates. In addition, they take into account not only the caloric content, but also the nutritional value of foods.
There are so-called "empty calories", do not bring your body any good. That they are laid in store at our sides. Besides regular daily diet should contain the required amount of vitamins and minerals. Such a diet would benefit both your health and your appearance.