How do i lose 25lbs fast?

Cardio 30-45 minutes at you target heart rate you can get online and find out what you ideal fat burning heart rate is. I am 25 and 5'7 129 pounds and mine is 127. Then work you legs one day a week and work you upper body one day a week. Talk to a trainer if you can they can set up a plan that is perfect for you body type.