How many calories should you eat per day to lose 1 stone 6 pounds - which is 20 pounds - in 3 weeks?

buy weight watchers low fat tin soup. try to eat 1 for breakfast lunch and dinner.. this amounts to around 400 calories per day plus 2 or 3 fruits and only light excercise is required

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This is so unbelievably stupid! you need to take in more than 400 Calories a day. You're body needs AT LEAST 1200 calories a day, otherwise it goes into starvation mode- where your bodies metabolism breaks down and it starts to store fat/sugar from anything you eat because it thinks there's a food shortage. Then when you start to eat normally it puts back on any weight you lost and more! The best way is simply to work out (via online pages) how many calories you need to take in per day. Then subtract about 400 calories from that. YOU NEED TO DO EXCERSIZE! i can't stress that enough. This will keep up your metabolic rate, and tone your body as you loose weight. This idiotic 400 cals a day diet may make you loose weight quicker, but think of all the baggy skin that will hang off you! that will only go away when you put the weight back on, and you will, if you do that diet. The best way is just a slight calorie subtraction from your daily allowance and excorsize about 4 times a week. You will loose it, and it will stay off you if you do it like that!