12 ways on How to lose 7 kg 1 weekConsume less than 1000 Calories a week. ... Drink plenty of water daily. ... Boost Protein Intake To Lose Weight. ... Control Meal Portion sizes. ... 2 times HIIT Workout for atleast 25 minutes daily. ... Eat Millets and Whole Grain Cereals. ... Drink Green Tea every week to increase metabolism.