Basically, if you are after the best way to lose fat fast then weight lifting is what you need since this help build your muscle tissue. If you have enough muscle tissues in your body rather than fat, it will burn more as compared to the effects when you have more fats within. Furthermore, muscle takes lesser amount of space. Stretching may further help because they free up those blocked energies within the body in order for all the systems to work competently.
But exercising alone will not give the maximum effect that you would like to see. What you need to incorporate as well is the act of taking fewer calories. You should also keep your blood sugar low because insulin can allow the body to store more fat. Moreover, doing crash diet can be tempting but if you really would like to see better results, taking things slowly is the trick. The problem with crash diets is that it allows the body to enter into a starvation mode which is wrong. It will help if you can take things slowly in order to anticipate better results that will be lasting as compared to entering into dangerous crash diets.