I would like to lose 40 pounds before the summer, but I want to lose the weight fast so I can start buying clothes now.Do anyone have a diet I can try?

The most effective way is to drive LOTS of water. At least 10 glasses of water or more. Its most effective where it detoxifies your system and cleans it out.

I have heard that it is unhealthy to lose more that a few pounds a week. Take it slow by eating healthy and exercising.

There is no quick fix. All diets involve discipline and eating less. However, cutting out all the white carbs (sugar, bread, pasta, rice, potatoes) will often give a kickstart to your diet, and give you an incentive to keep going.

No there is no way and in fact any suggestion of a way to do it, would be so unheathy and dangerous this site would delete it as soon as we were notified.

You couldn't even lose 20 pounds in a month in a healthy way.