Not in any realistic or healthy way. 2-4 lbs/week is about the recommended loss rate to remain healthy.
you have to lose 6 pounds
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.
It's impossible to lose 20 pounds in overnight. Nutritionists are always recommending 2 pounds of weight loss in 7 days, according these levels it is always recommended to lose 20 pounds in 10 weeks.
3 days of time is very less time to expect weight loss. The recommended weight to lose in 7 days is maximum 3 pounds, by healthy diet and exercises we might lose these 3 pounds.
By natural diet tips and exercises it's impossible to lose 40 pounds in 3 days, nutrition experts are recommending maximum 3 pounds of weight loss in 7 days. To cut forty pounds you need to give at least 14 weeks of time to yourself.
If you weigh 215 pounds and fast for 7 days then you would lose several pounds. However, you would most likely regain weight once you started eating normally again. If you want to lose weight and keep it off, you need to exercise, change your eating habits on a long-term basis, and lose weight slowly and steadily.
You cannot lose 7 pounds of body weight each day.
Here are some examples: If you are male and need to lose more than 30 pounds, you can plan on around 10 or more pounds in the first 7 days. I have seen men lose as much as 12. If you need to lose around 15 pounds, you can plan on losing about 7 pounds the first week. If you are a woman and need to lose around 60 pounds, you can most likely plan on losing 12 pounds the first week. If you need to lose about 30 or less pounds you will most likely lose around 5 to 7 pounds the first week. The above situations are based on doing the HCG Diet correctly!
Losing 7 pounds in a one day may be impossible but if you maintein your food, exercise etc, you will loose weight in no time :).
You can lose millions of pounds (or dollars, or euros, or whatever) in 7 hours - if you have them, and are willing to spend them.
It is pysically impossible to lose 7 pounds in a week.
There is no safe way to lose that amount of weight in that time frame. 2-3 lbs is about the most you can safely lose in a week. If you managed to lose 10lbs in 8 days most of it would be water weight and would come back very quickly.