How to lose weight fast: 8 ways to drop 2 kg in one week How to lose weight fast: 8 ways to drop 2 kg in one week. ... 30 minutes cardio every day. ... 36 push-ups and lunges on every alternate day. ... Switch to complex carbs. ... Drink water (and lots of it) ... Eat 5 meals a day. ... Maintain a rigid posture at all times. More items... 26 Feb 2018