While most people would prefer a method of fast weight loss, there are many reasons why fast weight loss may not be the best way to go. Fast weight loss usually entails extreme calorie or food restrictions, or other extreme methods that are not sustainable over the long term.
For a variety of reasons losing weight very quickly, especially when it is by using "crash diets" or diet aids with questionable safety, is usually not recommended. Fast weight loss methods can in some cases create more health problems, and healthy lifestyle changes give a better chance of long term weight control and management.
In most cases, the healthiest way to lose weight is a little at a time gradually over many months, by incorporating healthy every day habits. Healthy habits, such as regular exercise and nutritious diet also often lead to other health benefits, such as lower cholesterol and blood pressure.