No matter how I say this, it is going to sound mean and I am sorry about that, but you cannot lose 20 pounds in 2 weeks. You should have started planning in advance. So what you do need to do is set a goal for yourself such as a pound a week and in two months you will lose 20 pound, but it will take time.
So there are three things you have to do and I know this will sound like a Blah, blah blah, but bare with me for a second. So you need to: Eat Right, Exercise and Eat smaller portions of the meal! Having said this. The key to losing 10 or 20 or 30 pounds is in your metabolism. But no matter what you do, you should never stop eating.
First start with breakfast, since it is the most important meal of the day. Have some cereals, low-fat milk and some soy bread. Soy does not contain any of the harmful elements, it is rich in fibers as well as the grains. Fiber loaded food is great in speeding up your metabolism.
It is very important to introduce this type of food into your daily meals, no matter if you are trying to loose weight or not, you have to take care of your body all the time. After that have a small meal, usually some fruit, but don't overdo, one apple or a grapefruit would be enough kind of like a snack. But healthy snack.
You can eat fruit all day long if you like but be careful, never in large portions, always keep your portions small. For lunch you can always have some meet, but never without vegetables. There must be some cabbage, broccoli on your plate every day. You can also add some fruit or veggie snack for afternoon snack.
Dinner is usually again some fruit, or a yogurt depends on what you like to eat the most. And never forget. NO SWEETS. If you want to loose wait, don't even start if you cannot give up on sweets. However for sugar cravers, there are some good diets that help getting you of sugar cravings and quick weight loss. Drink lots and lots of water. That is a must, no soda, just water! Great detox from toxins as well as miracle on metabolism. So again, if you want to lose 20 pounds in more than a week, than you have to set a goal and eat right! But no matter what you do, do not starve!