You could simply starve yourself, but it's a bad idea and likely to be harmful. You should allow a week for every 1-2 pounds (1 kg) you want to lose. Seven days is just a start and isn't enough time to lose 10 kg.
Here's a program for the period in which you want to lose weight:
Plenty of moderate aerobic exercise, no sweetened liquids at all, and no junk food at all. Preferably no sugar, and as little added salt and processed foods as possible. Eat 3 small-portioned meals/day; do not skip breakfast; and avoid snacks. Limit your calories (better to consult a doctor or nutritionist concerning the amount), and weigh yourself 2-3 times/week. Ignore the sensation of hunger. If you see your weight diminishing at a safe, reasonable rate (1-2 pounds/week), keep it up.
Once you've reached your target weight, increase your calorie intake somewhat. And you can then have small amounts of sweetened foods or junk food on occasion (if at all), along with your regular foods (not instead of them). But keep checking your weight 2-3 times/week.
Avoid crash diets, diet pills etc. Avoid fatty cuts of meat. Walk as much as possible. Bicycling and swimming are good too.
More guidelines:
Don't concentrate on specific foods so much as on a balanced, healthy diet plus exercise. Plenty of moderate exercise rather than intense exercise, which can damage your joints.
Good nutrition means eating what your body needs, while ingesting as few harmful things as possible. It has also been described as getting enough of each of the major food categories (grains, fruits, vegetables, protein, dairy, etc.; plus plenty of water).
This will vary somewhat from one person to another; and I don't believe that there's any universal diet that can be prescribed for everyone. Avoid best-sellers with their perennial fad diets. And think twice before using any dietary supplements or weight-loss pills.
In general, one's starting point can be a menu of whole grains, whole-wheat bread, a good amount of vegetables, some fruits and nuts, fish, lean meats (in not-large amounts), and some dairy. However, this must be tweaked according to one's health, weight and other factors at the outset; and also adjusted over time, as one sees what works for him/her in particular.
Also...whenever you feel queasy, nauseous, constipated or otherwise not completely well, try to remember what you've eaten over the last several hours or the last day. This is one method of adjusting one's food habits.
You can't - even if you starve yourself (which is dangerous) you could not lose that much weight in 7 days.
It will lose 42 seconds in 7 days.
How to lose 7 kg in 2 weeks
700/1000 of 1 kg = 7/10 kg = 0.7 kg
7 stone 10 pounds equals 48.99 kilos
Hcg diet
In order to lose 7 pounds in 7 days, you must burn at least 3,500 calories each day. This can be done by exercising and lowering your calorie intake each day.
700 g
There are 10-7 lots of 10 kilograms in 1 milligram. Conversely, there 10 kg = 107 milligrams.
It does not because 7 weeks is 49 days 7 x 7 = 49.
There are 70 days in 10 weeks. There are 7 days in one week there for proving that 7*10= 70
That you do the same action every 7 to 10 days.