Loss 20 Pounds in a Week

We first need to discuss a few myths about weight loss. There is a very common myth that extreme diets will put you into "starvation mode" and your metabolism will simply stop working, which will result in you not losing any weight at all. The problem with this idea is that there is no scientific evidence that this "starvation mode" even exists. Severe caloric restriction will reduce your metabolism slightly, but that will happen in a linear fashion and it can be easily reversed. There is nothing you can do that will actually cause your metabolism to "break down". For example, if you need 2,000 calories daily to keep you weight stable, reducing your intake to 1,500, will probably help you lose a 1 pound per week. Furthermore, reducing your intake to 1,000, will result in a weight loss of two pounds per week. Using the same logic, consuming 500 calories a day should help you lose 3 pounds per week. However, if you actually consume only 500 calories per day, the weight loss will probably be less than 3 pounds per week because your metabolic rate will be slightly reduced. So, you might not lose 3, but 2 1/2 pounds. This slightly lower metabolic rate is vastly different than the "starvation mode" notion.

Now, in order to lose 20 pounds in a week you will need to create a calorie deficit of 70.000 calories. This means that you will need to reduce your daily calorie intake by 10.000, or at least burn a few thousands calories per day through exercise.

You realise that achieving this goal would be very difficult, but surprisingly not entirely impossible. Most nutritionists recommend to never go below 1,000-1,200 calories a day and you will need to follow this advice or else you will put your health at risk. So, what you need to do it to lower your daily caloric intake to 1,000 calories, exercise more and take a multi-vitamin to avoid vitamin deficiencies. Keep in mind that only people who are morbidly obese and consume many thousands of calories per day will be able to create a calorie deficit that will enable them to lose all this weight in such a short period of time.

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