Sometimes, you just take things for granted. It's so obvious, you need never think about it. So, we have always known the only way to lose weight is to burn more calories than you eat. It's therefore necessary to eat less and exercise more because the extra exercise uses energy, i.e. burns calories. Well, this is not quite as clear cut as you might think. There's a surprisingly large number of people who believe exercise alone can make them thin. These are the folk you see pounding through the parks or along the sidewalks in the better neighborhoods, their sweatshirts sticking to their bodies and their iPods swinging round their necks. Or those teams of college graduates who replay endless football set pieces or play hoops. Their commitment to keep their weight down is fierce. Yet the latest scientific evidence shows the effort they put in has little effect on their weight. In fact most immediately undo the little good they managed by downing a few cans of beers and nibbling on a burger and fries.

Let's be clear. Schools and colleges continue to play about the same level of sport but the rate of teen obesity has been rising fast. If there was a real link between the level of activity and body weight, it would have slowed down the epidemic. But if we assume a sandwich contains 300 calories, the average fit person would have to run hard for at least an hour to burn it off. If you eat 3000 a day, you can do the math. There are not enough hours to run every day to keep your weight from rising. The only way you guarantee to lose weight is to eat less. If you also exercise, this can increase the speed of the loss, but eating less calories is the answer.

Keeping this advice real, you have to recognize there are no magic bullets. No drug manufacturer has come anywhere near producing a pill that can burn the fat away. More importantly, there's nothing in the pipeline claiming that result. This leaves you with diet pills plus a diet plus exercise, or bariatric surgery plus diet and exercise. Surgery is expensive and there are risks of complications, so dieting with the help of appetite suppressants is the preferred way. A recent study took two groups of obese people. One began a diet plus exercise. The other began a diet and added exercise six months later. The first lost an average of 27 lbs at the end of the year. The second only lost 20 lbs. Exercise does help you lose more weight as part of a calorie-controlled diet program.

The main reason for people giving up on a diet is hunger. They are not not used to the discomfort and give in to their craving for savory snacks, sodas and sweet food. This is why Phentermine is so important. It changes the way the chemistry of your brain works so that, even when your stomach is sending out desperate signals for more food, you are not aware of it. Phentermine gets you through those hours between meals without you falling off the wagon. You eat less and lose those pounds!