The human body was designed millions of years ago and we have the same genetic material. Basically, cave persons ate when they found food and didn't eat when food wasn't available. You must eat a healthy amount of food even with a quick weight loss diet. Your body will start to shut down if you stop eating completely and will actually begin to enter starvation mode.
Eating healthy and exercising regularly are still the major factors when it comes to dropping unwanted pounds. Eating less can cause some health diseases and other health problems. The best thing to do while selecting a quick weight loss diet is to choose a diet that is properly balanced. Eating the right foods along with exercising (even if it's just walking a few days a week) is the only thing that will KEEP the weight off! If there was a quick fix, pill, or diet that worked - everyone would be thin.
Diet systems are not one size fits all. This is why a diet may work for you, but not a friend or a family member. Dieting has hazards that are rarely pointed out. Yo-yo dieting is particularly dangerous and ineffective, because it decreases the metabolism, leading to an immediate weight gain once the caloric restrictions are eased. People eat huge portions consuming extra calories resulting in extreme weight gain.
Overall, the quick weight loss diet is never one that is going to give a person results that are going to last a lifetime. For people who want to drop the weight and keep it off, these diets should be avoided at all costs. They simply do not work well and will cost you more then an arm and a leg. Going about weight loss the old fashioned way is the best way to drop those nasty unwanted pounds that you have been carrying around.