Don't believe that crash diets are there for weight control if your question is how to lose weight at home. They are rapid methods designed to lose a certain number of pounds for an occasion. It may be for your wedding so that the beautiful wedding dress you have chosen will fit you.
The danger with crash diets is that as soon as you stop it, you will gain weight once again. This time you are going to have a higher weight than when you started on the crash diet. Therefore avoid going for crash diets at any cost.
The problem with these diets is that you cannot continue it for the rest of your life. Therefore, one day you need to stop it. That is when you will start gaining weight once again. It will take only a short while for you to regain the lost weight. Sometimes you will gain more.