Excessive weight or Obesity is gradually becoming a serious problem in developed communities. Sedentary lifestyles combined with a propensity to consume excessive junk food which are loaded with calories have contributed to this problem. It is estimated that one in four Americans suffer from obesity. It is a medically proven fact that overweight people have a lower life span. Overweight also increases the chances of serious health complications such as diabetes, heart disease, stroke, High cholesterol, Gout (joint pain caused by excess uric acid) and gallbladder diseases, Kidney problems, weakening of the joints, back problems, interrupted breathing during sleep, osteoarthritis (wearing away of the joints), etc. To prevent these serious complications it is best to understand the causes of overweight and make concrete effort to fight the flab.

A person does not become overweight or obese in a day. It takes years. A person normally gains weight when his food intake is greater than what his body expends .The excess food intake gets converted by the body's metabolism into fat. Gradually a person starts gaining weight and this might be as low as a few pounds in a year.

Exercise is the easiest way of controlling excessive weight. To cope up with today's sedentary lifestyle one should exercise for couple of hours every day. This is easier said than done. Many people have such packed lifestyle that they do not even get time for any recreational activities; forget about going to a gym. The next precaution would be to have a controlled diet with large helpings of low calorie food and vegetables. However, many people cannot give up their habit of junk food and other delicacies which often come loaded with calories.

From the early twentieth century, various attempts have been made to tackle this problem and lots of research has been done in the last decade. Today several effective diet pills are available in the market. These pills are best recommended for people who have started putting on weight but not falling into the overweight category. For obese people also diet pills offer a ray of hope of being able to go back to their normal lifestyle. To obtain best results diet pills should be used with a controlled diet a more physical activity.

A diet pill works in the following two ways. Some diet pills are hunger suppressants. They reduce the appetite. Over a period of time if a person consumes less than automatically he will lose weight or in extreme cases the rate of weight gain is reduced to a large extent. The second category of diet pills improves the metabolic rate or the metabolism of the body. In simple words, it means that a person will expend more energy to do the something that he has been doing. And there a diet ills which work on a combination of both deceasing one's appetite and increasing the metabolism at the same time. These diet pills are more effective as they have a two pronged assault on the excess fat.